Finland and canada both have long hunting traditions (much of canada lived like the rural US for a while, though I'm sure they're urbanizing now, too). Not sure if there's a military reason behind finland's numbers, but back when I was hunting and reloading, I read a forum that had a database for load data and several of the members were Finnish. Posts about moose hunting and then hanging the meat (kind of gross looking when it's not your meat) were frequent.I think the discussion about guns is simplistic, because it suggests there are just two extremes. This Wikipedia table is interesting, giving estimates of guns per 100 of the population: Estimated number of civilian guns per capita by country - Wikipedia
Naturally the US heads the table at 120/100, which confirms that US residents really like guns. England and Wales is towards the bottom at 4.6/100.
But way higher than England is Canada at 34.7/100, Finland at 32.4/100 and Switzerland at 27.6/100, all notoriously more peaceful countries than England. Meanwhile lawless, drug-gang ridden Mexico comes in at only 12.9/100.
All of which just tells us that correlation does not equal causation, which we knew already.