If it a question of time-area, then it did not go well for Ruzzia, considering they have lost a full year worth of land in the couple of weeks of the Kursk offensive.
The data disproves you hypothesis of Ukraine seeing a feature in Ukrainians being killed - I mean, if it even if such unsubstantiated comment has to be disproven.. The average age in the Ukrainian army is very high compared to others because the government is trying to have a future for the country.
Ukraine is not focused on land, they are focusing in asymmetric war. It is not possible, as of now, to hold all the land at no-matter-the-price, but it is possible to make it economically and politically not worth it. This is how smaller countries defend themselves - not only Ukraine.
Germany in WW2 took 13 000 times more area, and lost. Your strategic thinking stopped at around 2nd century BC
Nope, the Germans did not take any land and lost the land they started with. I mean, you do know that the Ruzzians, with the help of many Ukrainian soldiers recovered all the land and got themselves to Berlin right?
History does not finish at an arbitrary point of your choice, but I reckon that you and Putin have the same view.... he wants to start peace conversations where he left them before he lost Kharkiv and bases his "rights" in a map from a few centuries ago... You have a lot in common congratulations!
