I’ve often wondered this, and it has come up in our games. With regards to air units attacking a target and needing a place to land legally in order to make the attack, you cannot just send them on a suicide run to kill something and let the survivors just die at end of combat.
But, if one has a single aircraft carrier as a legal landing spot, can one then attack with more air units than can legally land on the carrier? Say, four fighters but only 2 can land, but since there is a legal landing zone at the start of combat is the move legal?