Wars doesnt harm every country. i think some of the country gets benefited because of it.
And what are the benefits that other countries get from war, if not the chaos, fear, and trembling of some citizens, which can cause them to have some health issues? Even if a country does win a war, it doesn't make the economy better during that time. Things don't normally work well for that period until war is over, and there might even be some restrictions during that period, which can make some workers stop working, some companies stop production, and short down at that moment. If war lingers for so long, it can cause more harm to the economy of that country.
That war is a purely destructive process, no one argues. But there is a more important indicator - the conclusions and reaction.
In technical terms, it is not so much the errors in the system that are critical as the lack of reaction of the system to these errors.
I.e. it is very important - what will be the reaction of the world, in order to prevent the recurrence of similar problems in the future. Because in addition to the huge number of human casualties and destruction of entire regions in Ukraine, this war has created real global problems in the world economy. It is true that this is already a topic of economic terrorism, but the world must develop solutions against it as well.
Not really war... but sanctions! Sanctions have caused issues and continue affecting global economy in the most negative way. Only people with room temperature IQ still believe that sanctions actually cause any significant effect on Russia and will stop Putin.
They also thought the same in the USSR, puffing up their cheeks and talking from all sockets about the "decay of the West" and the collapse of imperialism tomorrow. And they explained the same way - a strong economy, a powerful ruler and the Central Committee of the CPSU. The whole world envies the USSR. 40% of resources are in the USSR. The people and the party are united !...
Shall I tell you how this show ended? I personally watched it inside the USSR. In this case, even I will declare - the USSR economy was more self-sufficient, it produced, albeit not very high quality but a very wide range. Science, education (poor, but massively), factories and plants even worked. And what is modern Russia? A pathetic parody of the USSR. The USSR degraded much slower than the Russian Federation. So don't tell me tales about the USSR and Russia
USSR didn't collapse because of sanctions. You can look it up anywhere you like. I guess that is the reason why you're not mentioning the source?
The real reason USSR collapsed was Mikhail Gorbachev. I'm not sure if he was a CIA agent or just was paid to do what he did but he was the real reason USSR collapsed. Yes, in some parts of USSR (like the Baltic States) strong national movements existed. But not in Ukraine, Belarus etc. where the politicians let alone most common folks didn't want independence from Russia and didn't know what to do with it. Both Kravchuk and Shushkevich were shocked when they heard it for the first time as they only came to Belavezhskaya Pushcha to sign new agreements on gas deliveries to the republics, Yeltsin granting independence to their countries came out of the blue. What economic sanctions have to do with it?