The title quote from US academic John J. Mearsheimer, was made some years back and can be viewed at the YouTube link given at the end of this article. I have not checked the present state of Russian advance today, but last night it looked like the Ukraine has already been wrecked. This is a test case war that China, the force behind Russia is observing, as it tests the pathetic West as it prepares for its invasion of Taiwan. Trade sanctions against Russia will do nothing as Russia will get continue to get resources from China, and the traitors of the West will continue to feed the Dragon, just as Pig Iron Bob did with Australian resources in the lead-up to World War II, so that good Aussie steel could be fired back at us. This time round it will ultimately be nuke missiles.
The Ukrainians are putting up a heroic last stand. I saw a YouTube report, but was too illiterate to note the names, of about 13 Ukrainians who were guarding an island. A Russian warship requested their surrender. They told the Russian warship where to go in the crudest terms. Then the ship commencing fire, backed up by an air strike. The Russians did not have the guts to fight it out with rifles, and that it how war will go today, using tech for easy kills. It is a pity that the forces of the universe allow this, and do not make life more interesting for viewing by having a mass failure of tech, so if men want to kill, they need to see the eyes of those they kill.