The Trump administration lifted its suspension of military aid and intelligence sharing for Ukraine, and Kyiv signaled that it was open to a 30-day ceasefire in the war with Russia, pending Moscow’s agreement, American and Ukrainian officials said Tuesday following talks in Saudi Arabia.
Sustaining war doesn’t really depend on the economy. They can ignore a lot of things and just keep going. The only reason they have to worry about 10-ish months is they are running low of soviet stocks of things like artillery, tanks and such. However North Korea doesn’t really need/want money to deliver more and so that it is unknown how that continues.
The economy matters, but only in that as people’s lives get worse they will start to become more interested in revolution.
Sustaining a war does depend on soldiers and equipment.
Without a reasonably healthy economy, there won’t be any soldiers. The Russian soldiers are in it almost completely strictly for money. If there is no economy, there is no money. And with no money, there are no Russian soldiers. Similarly money is just one of the things that a functioning economy produces. The economy also produces goods. Tanks are produced by the country’s economy. If there is no economy, there are no factories running.
Also, North Korea is a lot smaller country than the Russia is. They do not have an infinite supply of tanks, nor a spectacularly good ability to produce many of them fast. They do have a lot of artillery shells, but that’s pretty much it. If you look at how few soldiers NK has sent to the war, you get a hunch of NK’s strength as an ally. A bit over 10 000 soldiers in a war, where the Russia’s losses are over 1000 per day, are peanuts. With that amount of soldiers, the war was prolonged by 10 days, not more than that. North Korea’s influence is vastly overplayed.