If needed the risk is that yes jets would be possibly lost/hit/damaged. What has happened in the last month has proven that the game has changed. This is not a pier 1 v pier 2/3 scenario like the last 30 years.
Fuel wise the harrier could land anywhere, refuel, re-arm, redeploy, it was meant for forward deployment,unlike the tornado. The tankers were on the ground.
pop up out of the forest or launching from carrier, it could launch 18 brimstone
run away bravely, 18 tanks. gone. Ok abit optimistic but you get the idea