Its not really a winning or losing situation. The modern world realizes that there are no grounds for compromise when it comes to setting a precedent for military acquisition of territory. The point that everyone including China are talking about is respect for territorial integrity. The big reason for this is if anyone is allowed a pass, no matter how small, we're past a small conflict like WW3 and into doomsday. India and Pakistan have been at each other's throats with nuclear weapons for years, but there is no incentive to actually make a move because no matter who "wins" or "loses" the world won't accept the result. The same with China and Taiwan, Greece and Turkey, and a plethora of others. The second anyone is allowed to expand their territory its open season on thousand year old grudges. If Russia can take Ukraine, China can take Taiwan, and then why can't the US or Europe do the same? Canada or Mexico are hyperbolic longshots obviously, but what about divvying up Africa again? We can't repeat the mistakes of WW1 with the technology we have today, it will without exaggeration be the end of the world.