I did once and highly regretted it. Japan had attacked India, taken it, lost it taken it back…etc. They called on Germany (I, conqueror of Africa) to help and I took it myself w/ 2 ARM. Unfortunately, Japan chose not to reinforce me and the USSR took India back. Japan took India AGAIN and begged me to land a FTR for defense and I did. They promptly moved OUT and left my precious FTR to die alone. Needless to say I never played alongside this guy again–at least while he was Japan.