This is what I have come up with:
Rommel allows all panzer and infantry divisions in the same province to travel +1 and two divisions gain +1 attack.
Zhukov gains one free infantry division each turn in the province he is in.
Montgomery’s troops gain +1 defense and two or less tank divisions gain +1 attack.
Patton’s advantage is that three or less land units a battle gain +1 attack.
Yamamoto’s fleet can move +1 and airplanes on carries in his fleet can go on kamikaze missions with +1 attack. (In a kamikaze mission, the plane can go its full range and is lost after attacking.)
A general is dead if his unit is killed.