Assume that we’re playing the 1942 setup. It’s Japan’s first turn. Japan has a carrier in the Caroline Islands sea zone (SZ 51) and a fighter in Tokyo. Japan wants to attack the Hawaii sea zone (SZ 53). That sea zone is four spaces away from Tokyo.
So Japan moves the fighter (and some other units) to SZ 53, but not the Caroline Islands carrier, which would be that fighter’s only possible landing space. During non-combat movement, Japan will move the carrier to SZ 53, which is vulnerable to US attack, only if the fighter with zero movement remaining survives. If it doesn’t, the carrier will move somewhere else.
Is that permitted? Or does the carrier HAVE TO move to SZ 53 during combat movement?