nbc s chief white house correspondent stopping by for us. thank you. the president praised the military for friday s missile strike but was not so clear on future strategy. question remaining did this strike signal a shift in syrian policy or a one-off act. cal joins us with more on that. what does this mean and what do we have to consider in that question? we have to consider the battle space here. the battle space is very complicated. in red we have areas controlled by the syrian government. that s a bit misleading. that really means areas controlled by the russian military. they re basing their operations really around two port cities in the north sort of western part of the country. that s where they re doing these sort of antiaircraft missile batteries. that s where we sent the tomahawk missiles instead of aircraft. raqqah is going to be the next big fight. this is where the chemical attack allegedly took place. what we re noticing about this chemical attack and let s be clear t