While your general complaint is fine, "Does anyone here even know why we are bombing Yemen?" has some very good answers: If you fire a missile at a US warship,

While your general complaint is fine, "Does anyone here even know why we are bombing Yemen?" has some very good answers: If you fire a missile at a US warship, you shouldn't be surprised if any assets used to do that get zapped in return. Probably the 2nd biggest principle for our having a Navy, beside the obvious one of protecting the nation from attacks, is to keep the sea lanes open, so that's why we had warships offshore Yemen in the first place. One of the reasons Yemen is a major area of contention, part of today's "Great Game", it that it's a great place to interdict sea traffic to and from the Red Sea and the Suez Canal. As I just measured it by eye from Google Maps, the initial straits vary in distance from Djibouti and Eritrea by 15 to 25 miles, less if you count an island in the narrowest chokepoint. But, yes, as Peter Theil put it, "Just as much as is is about making America great, Trump's agenda is about making America a normal country.... A normal country does not fight five simultaneous undeclared wars."