[gpm]

"The enemy landed 4 of our aircraft" without context wouldn't generally mean "forced to land" imo (as a native speaker). It would mean that they either destroyed them or managed to acquire them.

For example I might say that "they landed 4 aircraft with their daring" if they forced us to abandon an air craft carrier (e.g. by sinking it) and then managed to steal 4 of the planes (before it sunk). Or I might say "they landed 4 aircraft with that bomb" if they dropped a bomb on an airfield and it destroyed 4 aircraft.