Now imagine that all of those places also shut off their airspace to your country. I suspect this also goes for shipping. It basically causes you to become a hermit, and that's very challenging with the current global economy. Unless you embrace something like North Korea's "juche", you're going to be really hurting.
That's more or less what is happening to Russia right now.
Basically today with 1000 rubles you could have a nice meal at a restaurant for two people, in two days with 1000 rubles you will barely able to buy a loaf of bread.
Anything you need to buy from outside russia it's going to cost you too much, and you won't be able to pay for weapons, ammunitions and soldiers' salaries.
In the long-term, the Russia Gold Reserves is projected to trend around 2400.00 Tonnes in 2022 and 2420.00 Tonnes in 2023, according to our econometric models. Gold Reserves are country's gold assets held or controlled by the central bank.
Russian soldiers won't fight because they will get paid in worthless paper because it has no future value. All Russians remember the 90s even the new soliders born after 2000. And their parents remember. Pepperidge Farms remembers.