Thousand Oaks shooting

[Montmorency]

Obligatory reading.

I understand that the correct solution is more nuanced than simply ban guns and let the Obama Red Guards overthrow democracy, but the obsession of American culture with guns is not an innocent coincidence. It's not surprising that Finland has quite a bad record with massacres in public places and also encourages gun ownership, ever since the sensitive age of 16.

What do you think of contextualizing American gun control as an international arms control problem?

Wrong, see Armia Krajowa

The Polish resistance was a military organization (basically an extension of the Polish military-in-exile) and organized as such.

During the formative period of the military wing of the Polish underground
state between September 1939 and spring 1943, a conception
of armed resistance to the occupation emerged that made preparations
for a national insurrection in the closing stages of the war the focus of
ZWZ-AK efforts. It was a strategy that accepted that the war was likely
to be of long duration and that the ZWZ-AK could not confront the
occupation with armed action in a way that unleashed the military
power of German occupation forces with devastating consequences on
the civilian population. The focus on the long-term strategy of preparation
for a national uprising had important consequences in terms of
shaping the ZWZ-AK’s approach to partisan warfare. First, it meant that
partisan warfare would be under strong central command and control
so as to not invite reprisals through armed actions yielding little gain
and provoking bloody reprisals. Second, the creation of a network of
small units in support of a future national uprising created a necessary
infrastructure for partisan warfare that the ZWZ-AK could employ in aid
of the wider war effort until German weakness would trigger a national
uprising.

Their equipment and non-food supply I imagine came from a variety of sources like pre-war caches, captured German equipment, and British airdrops.

I recall NKVD offering assistance towards the Warsaw uprising, even if Polish-Soviet relations were never quite friendly. I think you're right in that the Soviets were not able to support Polish resistance for at least half the war even had they wanted to. (And by mid-1944, they were basically already in Poland and fighting the Polish resistance as much as the Nazis)

UPA and Forest Brothers.

Spoiler Alert, click show to read: 

It is necessary to evaluate WW2 guerrilla movements by placing them within the state context.