Flow. to follow up on amer s question about the many months timeline, can you articulate why the decision did not take place sooner? you could ask that question about almost any system we provided and the answer is almost all the same. we are in constant conversation about the ukrainians and their needs and address the needs short-term and long-term and the decision that the president announced today was a result of a lot of conversations with the ukrainians as well as with our allies and partners, and it is very much as i answered before, very much about forecasting, trying to get ahead of the kinds of fighting in the coming months in the spring and summer of this year. one quick follow-up, i was struck with something the president said about ensuring that neighbors cannot steal other neighbor s territory, ....