And over the past two days theyve made agreements on fighting Climate Change and ebola. As well as boosting the Global Economy. Member countries also had strong words for russias president Vladimir Putin over its actions in ukraine. Senior White House Correspondent jim acosta is live for us in brisbane. Jim, this summit was supposed to be about Global Economic growth. It looks as though Vladimir Putins frosty receptions seems to have overshadowed everything. You know, it absolutely did, zain. At a News Conference that wrapped up this g20 summit, president obama took note of the fact that he had several conversations with Vladimir Putin over the course of the last week when the president was in beijing at the apec summit and at the g20 summit in brisbane, australia. President took note of the fact that Vladimir Putin did get a rough ride in brisbane, australia. When asked about what his conversation was like with the russian leader, the president didnt offer a whole lot much new details. He described the conversations they had as blunt and businesslike. What was also interesting, zain, as european leaders are talking about new sanctions against moscow over the crisis in ukraine, the president didnt really go in that direction, didnt really hunt that more sanctions from the u. S. Aimed at russia are on the way. Heres a bit of what the president had to say. I had naturally several interactions with president putin during the course of the apec summit and then here at the g20. I would characterize them as typical of our interactions which are businesslike and blunt. And my communications to him was no different than what ive head publicly as well as what ive said privately over the course of this crisis in ukraine. Reporter when pressed on whether or not he might support new expanding sanctions against russia, the president later said those sanctions are buying enough as they are. On another front, zain, during this News Conference i asked the president about the current u. S. Military campaign, u. S. Led military campaign against isis in iraq and in syria. The reason i asked that question is because the chairman of the joint chiefs of staff, Martin Dempsey, hes in iraq right now. Hes been saying in recent days, testified on capitol hill, that perhaps he might recommend situations where situations where u. S. Ground forces might have to go into combat. I asked the president if he supported that. Yes, there are always circumstances in which the United States might need to deploy u. S. Ground troops. If we discover that isil had gotten possession of a Nuclear Weapon and we had to run an operation to get it out of their hands, then, yes, you can anticipate that not only would chairman dempsey recommend we sending you as Ground Troops to get that weapon out of their hands but i would order it. And on a couple of domestic concerns, the president was asked about some republican threats back in washington to shut down the government if mr. Obama goes ahead and decides to sign an executive order providing deportation relief to millions of undocumented immigrants back in the u. S. The president took note of the fact that mitch mcconnell, the incoming in Senate Majority leader has promised there would not be another Government Shutdown in washington. Sort of a reminder to the republicans that theyve said theyre not going to go there. One thing he did point out will be news for our u. S. Viewers back in the United States. The president did say he has received the legal guidance from attorney general eric holder on how far he could go with executive action on immigration. No question, just looking back at the president s trip, he left washington as a lame duck who was bruised politically. The president closed the trip out with remarks in which he said this has been a strong week for american leadership. Hes certainly feeling a lot better about his standing in the world after this weeklong trip to asia. Zain . Im sure he is. Speaking of executive action and domestic issues, you emergencied immigration. I want to talk about Climate Change. The president did talk about 3 billion set aside for poorer countries to deal with Climate Change. He made interesting comments about the Keystone Pipeline. Tell us about that. Reporter thats right. Thats been an ongoing issue back in the u. S. Republicans very much would like to see this oil pipeline that the canadians want built through the u. S. There are even conservative democrats who would like to see that pipeline built. The president let the state department go through this lengthy analysis for environmental reasons as to whether or not its the right move for the u. S. The president said hes going to let that process continue on, that hes not going to force the state departments hand in putting out that analysis, that environmental analysis. The president took note of the fact. He did this the other day in myanmar. Theres a state dispute in the state of nebraska over where that pipeline might go through nebraska. And so the president really sort of holding firm to that particular point of view despite the fact that a lot of republicans back in washington are promising to enact legislation that would force his hand. Of course the president would not sign that into law. Another flash point for the president when he gets back to washington with congressional republicans, zain. Hes holding firm with the Keystone Pipeline and immigration as well. Jim acosta, thank you. Have a safe trip back to washington. We appreciate it. Washingtons chairman of the joint chief of staff, general Martin Dempsey as jim acosta just mentioned, made an unannounced visit to iraq on saturday. He says the tide is turning in the battle against isis in iraq. Arwa game e damon reports on th significance of this trip. Reporter americas top military mans surprise visit to iraq, a clear indication of how serious washington is taking the situation. General Martin Dempsey meeting with the iraqi Prime Minister. According to a statement by his office, the two spoke about progress being made by the Iraqi Security forces. General dempsey traveled on to irbil, meeting with the Prime Minister there as well. Part of this next phase of the u. S. Led mission and coalition is to focus on training of security forces. 12 units, part of the initial effort, nine of them iraqi army, three of them peshmerga, the Kurdish Fighting force. General dempsey also speaking with americas militarien kmaders on the ground wanting to get an idea of what exactly it is they need to be able to move this mission forward. General dempsey is very aware of the situation on the ground, having been the commander of the First Armored division in the initial years of the war and then moving on to head up americas effort to train and equip the Iraqi Security forces. This assessment is vital. Part of the reason why isis was able to take over such great territory in iraq is because of the u. S. s, perhaps, underestimation of their capabilities but also overestimation of the capacity and cohesiveness of the Iraqi Security forces that america left behind. That is not a mistake that the u. S. Or the region can afford to see happen once again. Arwa damon, cnn, turkey. The u. S. Doubling the number of military advisers in iraq. Once again, not ruling out the possibility of Ground Troops. Okay. Up next, parts of the Donetsk Region in Eastern Ukraine are about to be cut off. Well tell you about a big move from ukraines president. Also, a doctor with ebola has arrived in the u. S. To be treated. Straight ahead, what we know about his condition. Thats coming up. Dutch officials have started recovering the wreckage of the plane crash. They will reconstruct a section of the aircraft. Its all part of the investigation into the cause of the deadly crash. Western leaders at this weekends g20 summit demanded justice for the 298 People Killed in the july downing of mh17. The entire recovery operation is expected to take several days. Ukraines president has taken the First Step Towards cutting off all Government Funds and is ofs to prorussian rebels in Eastern Ukraine. Petro poroshenko issued a decree saturday calling for all stateowned companies and institutions to stop services in donetsk and luhansk within a week. The order comes off rebel leaders from the Donetsk Region held their new governments First Official meeting. In the meantime, shelling continues in the east, despite a ceasefire reached in september. Phil black joins us live from Eastern Ukraine. Phil, one of the points in the ceasefire agreement says, im quoting here, both sides, both the russian rebels and ukraine, should adopt a program of economic recovery in the Donetsk Region. Is poroshenko violating this agreement by the decree . Add it to the list. Both sides accuse each other of breaching the agreement in many ways and fundamental ways. Ukrainian government is angry that the separatist decided to persist with Regional Elections a couple weeks back, elections that kiev doesnt recognize, they say has taken place outside of ukrainian law. Theres the most fundamental of breaches which you touched on. The fighting continues. The ceasefire has never been really been respected. You really get a sense of that as we did when we visited the front line effectively on the ukrainian side. Some of its most forward positioned military unit. Thats where we went to. This is what we saw. Fighters in the mist, this armed camp is an exposed outpost of the ukrainian military. About 30 men, volunteers from the capital, defending a narrow finger of land. Their tanks, weapons and defenses point to east, south and west. Their enemy is close, somewhere through that haze. They say the prorussian separatists regularly attack. This they say is shrapnel. Chained into that position from yesterday. Reporter they say two men were killed here yesterday, 40 in the last month. To these men, september ceasefire means nothing. So do russias denials about sending fighters and weapons across the border to help the separatists. They say they know theyre fighting russians and they expect a major attack very soon. To prepare for it, they have been working underground. This is where dozens of these men sleep at a time. You can see theres one catching some rest just here. They dug this for themselves only a few weeks ago. Concrete ceilings, timber supports. They desperately hope this would be able to withstand a direct hit from rocket, ar rilty or mortar strike. In this place where they sleep, you can see they read, keep cigarettes. It is so close to where the action is. Out through this door, come and have a look. Defensive trenches heading in that direction and the other direction as well. Because the fighters here tell us that only about 800 meters that way are the forces of the prorussian separatists. Reporter a short drive away is another town, whats left of it. This is government territory. Locals say artillery fired by both sides falls here almost every day, often destroying homes. This is a strange, eerily quiet place but clearly it has not always been so. Most of the people here have left. The locals tell us its mostly the young people that have gone behind the old remain. They say they are too scared and they dont know where else to go. This 73yearold woman tells me the terror of living under bombardment. She says she feels like her heart will jump from her body. Shes too scared to eat or sleep. These people have little food or power. They dread the coming winter. And they dont care who rules over them, they just want peace. Zain, russia continues to insist it has no military presence in those separatist regions of ukraine. That is in the face of different assessments from nato, from the Ukrainian Government which says russia has sent in large numbers of troops, heavy and sophisticated weapons over the last week. The ukrainian assessment is that a major attack is coming, they believe. Those soldiers, those fighters that we met, they say they are committed and they believe they can stop such an attack. But they do not have the skills, resources, discipline of a professional fighting force. They are volunteers. So in the event of an attack, along the lines that the Ukrainian Government is predicting, involving significant help and practical assistance from russia, those men would find it very difficult to hold that position for very long, zain. We just heard from the g live 20 summit, western leaders have said that sanctions against russia will continue if armed rebels continue entering Eastern Ukraine. Phil black, live in Eastern Ukraine, thank you, we appreciate it. In the capital city , demonstrators are angry at the inaction that political leaders have shown in condemning russias actions in ukraine this year. To the u. S. Where a doctor suffering from ebola is in extremely condition. Hes a Sierra Leone National and a permanent u. S. Resident. Was treating patients as a volunteer for the Methodist Church in sierra leone when he became ill. I knew it wasnt going to be rosie. I took this job not because i want to but i firmly believe it was a calling, and that god wanted me to. Doctors say that his case is, quote within an hourbyhour situation but that he is surrounded by highly trained specialists. Meanwhile about 160 Chinese Health workers have arrived in liberia saturday to help treat ebola patients. Theyll start a new 41 million clinic run solely by chinese personnel. China has been criticized for its initial response to the ebola crisis. The countrys africas largest trade partner. Its foreign minister says it will send a total of 480 medical staffers to work at the center. The World Health Organization counts more than 14,000 confirmed or suspected cases of ebola in west africa. More than 5,100 of those have been fatal. The vast majority of these are, as you know, in liberia, guinea and sierra leone, which has seen a sharp increase in the number of cases in the past week. W. H. O. Or World Health Organization officials also confirm the deaths in mali, confirm three deaths in mali but say the outbreaks in senegal and nigeria are officially over. To sao paulo, brazil, where thousands of demonstrators rallied against the newly elected president. Her government is allegedly linked to a Corruption Scandal involving brazils main oil company. Some protesters are demanding her impeachment. Reporter more than 3,000 people have taken to the streets here in sao paulo to denounce political corruption. This comes in the middle of a massive investigation into a bribery scandal involving the state oil company and members of the ruling workers party. Now, what people here say they want is the impeachment of the president , reelected last month and the end of what theyre calling the cubanization of brazil. Translator we are quickly going down the path of dictatorship. Just like venezuela. Its hard to believe our president wants democracy here. Translator we want her impeached because we cant take any more corruption and robbery. Reporter theres been incredible polarization in this country, ever since president ial elections. A few people have been calling her military intervention to overthrow the president. Just a couple days ago we saw another protest with over 7,000 people showing their support for the government and calling these right wing activists. And with this kind of polarization, were likely to see for the good part of the next four years. Cnn, sao paulo. Brazils police have arrested 18 people as part of this Corruption Scandal. New details about the Deadly Police shooting in ferguson, missouri, cast new light on that fateful day in august. Ahead. Attorneys eaction eactions to revelation. Thats coming up. And this one does wonders for me. And when they combine. 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