Just had a situation where a bomber found a ground troop in a factory area.
Since the bomber at the end of the first bombing round is in an area with an enemy ground troop does it have to retreat and loose a step ?
From 1.1 rules, section 6.7 page 7:
IMPORTANT: an air unit without army
support must retreat from an enemy
army at the end of the battle. Air units
that retreat on round 1 take a 1-Step
So no, air units can stay for the two rounds. If it's a bombing raid against a factory, then the land units cannot fire at the bomber because the bomber did not target them.