Ratchet that, for sure.
I've been watching "The Last Days of WW 2" on the History Channel, which, of course, includes tons of goose-stepping Nazis and Soviets. It seems very arrogant and overdone to me, giving me somewhat the same feeling I had when video of Saddam was shown shooting off his rifle in the air, as he grinned at the crowd sadistically, from a balcony. I hate it.
The uniform appearance and the march itself is meant to look imposing and threatening.