How do we stock up for a potential war?

So here in Europe the EU just told us to have a 3 day emergency pack with food water and medicines ready no matter what, and everyone is talking about WW3 starting in or around 2030, which... is still a bit away, but then again the US is threatening Denmark so who even knows anymore. But all this fuss over preparation instructions from the authorities has me thinking: should I stock up on insulin? If so, how much - 3 months, 6 months? I have been intentionally harassing my endo to give me a double prescription the last few visits, but fifteen pens in the fridge as backup in case of emergency do not inspire a ton of confidence. Do you guys think during wartime insulin will still be manufactured and distributed here in Europe, or will we get fucked?

Aside from insulin and glucagon and test strips/meter, should our emergency kit look any different from a normal person's? Am I forgetting something? If, or rather, when shit hits the fan, I'd like to be prepared for the worst.