1) Corleonesi vs the Italian State (give to the italians the proofs that the mafia exist and are dangerous)
2) NCO - NF War(was the only case which a camorra clan tried to take control on all the Campania)
3) The A-B-C war in Rochester (that disbanded the small family)
4)Third Colombo War (almost led to the totally disband of Colombos)
5)Nardi/Greene vs Cleveland Mob (seriously wounded the family)

The Gallo rebellion never had a chance to change somethins,the banana war led to a instability period for the Bonannos but doesnt done big damages and Riccobene doesnt have enought men to be a menace for Scarfo,he start the war because hated Scarfo.