in isis khorasan. increasing terrorist attacks. here's the other challenge. isis doesn't control territory necessarily inside afghanistan, they're more of a terrorist group, they blend in with the population. if you want to retaliate, do something, there's nothing really to go after except that terrorist network, and at present, we can't do that. al qaeda and isis are in rivalry, al qaeda and taliban are in alignment, allies in a sense. they would love to do an attack like today, but repeat them over and over. it is a double whammy. they get to harm the united states as they execute withdrawal, get tons of global media coverage and going against the taliban which will be their enemy after the americans leave. >> clint watt with a little more information and context on who these various entities are for