Military themes, Ed. While that's an impressive amount of snow, it's a titch off topic.
But if we're talking "snow fights", well there's always the Ostfront.
The Battle of the Bulge was about six weeks long. The Yanks (and Germans) experienced some substantial cold, limited supplies, inadequate uniforms (at least on the US side) and life in close proximity to the enemy. Six weeks. And they consider it legendary hardship.
Karl here finds that funny.
Hans less so.
Months of conditions substantially worse than what the Bulge saw, and
four entire winters. The suck was constant for the guys on der Ostfront. Few of us have been as cold and miserable as those poor bastards, sent to a vast unwelcoming land, beset by angry, strongly motivated people like these lads:
Crappy gig all around for everyone involved.