Putin Must NOT Win in Ukraine

It’s become clear that Putin must not win his absolutely insane, mad attempt to take over the government and country of Ukraine.
I am sad to conclude that just sending more and more guns, weapons, armaments to Ukraine will not stop Russia’s totally unprovoked attacks on the people, cherished homes, social and cultural physical structures of Ukraine. Putin/Russia must be stopped. And without a full on attack by the U.S. and the NATO countries, Russia will not stop. We are again dealing with another mad man which History has vomited up to cause the world heartache, pain, hunger, massive destruction. Yes massive destruction for the entire world, because approximately 1 billion people will suffer unmitigated hunger, disease, poverty because of this senseless, unnecessary war. And if not stopped, Putin will continue his expansion to include the Baltic countries, as well as Poland.
The U.S. was s-l-o-w to enter WWII, not convinced of the need for our boots on the ground until the wake up of Pearl Harbor, despite Great Britain hanging on by the slimmest of threads from 1939 to early 1942 when the U.S. finally got its military to act.
We cannot, cannot wait to send American troops and thereby send NATO troops to fight against Russia and Putin. We must send troops in now.
Yes, this will begin a WWIII. Yes, it might, God Forbid, even cause nuclear weapons to be used, but I am convinced that waiting till Ukiraine is destroyed will prove to be more harmful.