Threats to departing aircraft?

Watching the flares being fired from the departing aircraft suggest the treat of surface-to-air missiles being fired at the aircraft. Flares are used to distract and confuse heat-seeking missiles.

Why did Biden box the US and allies into an airport in the middle of a crowded city? This is beyond insane.

[media=https://www.youtube.com/watch?v=1RHT0PwyXNc]