You're right, and it's a fundamental aspect of the US military. It's fine that the GP doesn't understand, but it's not fine to speak as if they do. Jointness is

You're right, and it's a fundamental aspect of the US military. It's fine that the GP doesn't understand, but it's not fine to speak as if they do. Jointness is decades old now. Politically, it's seems very unlikley that the US desires to send ground troops (which seem more likely to be Marines or special forces than regular Army) into Yemen. Yemen is tied up with Iran, Saudi Arabia, and a Mideast that's on a hair trigger. The US wants to de-escalate, not inflame the situation. Biden is very cautious about confrontation and military involvement anyway, but I can't imagine any president doing that. At worst, some local ally would do it with our help. More likely would be airstrikes. The US has air bases all over the region, and can fly from anywhere due to refueuling capability; they don't need a carrier to do it. If the US did conduct airstrikes, I expect they would not publicize it to avoid escalation with Iran, in Yemen, in the Mideast generally, and pulling in Saudi Arabia too. That's exactly what Hamas and possibly Iran would like to see. But the Houthi missiles aren't that big a problem, so far.