If you got in your country land commodities and resources anything good and useful then ofc you go to war.
Reason why it's to lower your nation currency with war against USD GBP EUR.

For example: you sell oil with your currency all what it takes to make crisis in your country your currency will go lower against USD GBP and EUR. so it's cheap to buy and then sell it with USD GBP or EUR with high market prices.

they buy your commodities lower price even If market price are high over the world.