Eventually, they have to land.
Take offs are optional. Landings are not.
Even in the air they may be safe but their families, not so much. If you air strike me and mine, I will shoot you and yours. How many pilots will go up knowing their families may pay the ultimate price. Not just planes, but everyone else. Civil wars are very uncivil. They are bloody disasters with escalated butchered reprisals. I find Biden’s cavalier attitude very concerning. Civil wars are mostly barbaric bloodbaths nowadays.