I think that I've once promised to stay away of all gun control threads but since military history in general and Finnish military history in particular is one of my hobbies, I think I should give some more information on this point.Victor Danilchenko said:Finns, with general population armed, kicked USSR's ass in 1938. Yeah, the guerillas can be damn effective against a regimented army...
First, Finns had two wars against Soviet Union during WWII, first 1939-40 and second 1941-44. Your comments fit better in the context of Winter War (the earlier one).
It is rather misleading to state that it was a guerilla war. Almost all Finns who participated in it were part of regular military forces, and most major battles (Summa, Taipale, Muolaa, Kollaa, Viipuri Bay, Tammisuo, etc.) were WWI-syle Soviet frontal attacks against prepared defences. The most famous (and succesful) guerilla actions (Suomussalmi and Raate road) were against Soviet divisions who had been tied to a single road and whose advance had been stopped by relatively small defending forces. Then, small (platoon or two at first) units started to raid Soviet flanks. These attacks culminated in encirclements where roughly batallion-sized forces cut the roads behind the main bulk of Soviet divisions and dug in. At Suomussalmi the 169th Infantry Division managed to save its manpower by retreating over a frozen lake (they lost all heavy equipment, though) but the 44th Mechanized Division was almost completely destroyed along Raate road. [The commander of 44th Division was sentenced to death by a military tribunal headed by Lev Mehlis. According to a persistent legend the official reason was that "he lost 38 field kitchens to the enemy."]
The pre-war Finnish society had definitely much more weapons than we currently have. Most people lived in rural areas and hunting was a common hobby. I don't remember seeing any hard data on the number of privately owned weapons, though, so I can't say whether we can say that Finland had generally armed population or not.
However, I believe that a more important fact was the existence of the Suojeluskunta ("Protection Guard") that was a patriotic organization that gave voluntary military training for roughly 65000 men before the war.
Suojeluskunta members formed a well-trained and well-motivated core of most infantry companies.