Pretty sure Luftwaffe pilots had get togethers post-war, also pretty sure that some uboat crews did, but I think a lot of them were instigated by former allied soldiers, sailors and airmen. For most Germans I think they wanted to forget it happened and focus on putting Germany back together, well...whatever half of it they were living in.
I certainly imagine that reunions in Eastern Germany were a good way to get a room full of Stasi.
