2-3% of Ukraine's population are at the front lines. While the others are maintaining a reasonably functional society. There are so many counter examples to yo

2-3% of Ukraine's population are at the front lines. While the others are maintaining a reasonably functional society. There are so many counter examples to your proposal so I think you are just guessing. Where did the Civil War end up when Soviet invaded Hungary in 1956 or Prague 1967? Or Poland? Should the Finns have invited the Soviets into their country in 1939 instead of defending it? Would the British have been better of fighting Germany of the streets of London? And what about the preventive force a regular army has? Would you want to be without that and simply leave the doors to your country unlocked?