In 1994, the United States pressured Ukraine to give up the Nuclear Weapons it got from the break up of the Soviet Union.
In exchange, Russia promised to never attack Ukraine. And the U. S. promised that Russia will never attack Ukraine.
The aid we give to Ukraine is a great deal for us. It wrecks a great power that has been a menace to World Peace for decades. Being the principle reason for all the billions we have spent each year for many decades. Now, for a fraction of our yearly expenditures on defense, we are getting that menaced wrecked. If we could do the same with China, if a similar amount of aid to Taiwan could wreck the threat of China, our military expenditures could be greatly reduced in the coming years.
But over and above the practical considerations, there is the moral consideration. The promises of the United States should mean something. We made a promise to Ukraine that we have been unable to fulfil. The least we can do, in exchange of reducing Nuclear Proliferation, which was and is so important to us, is give full support to Ukraine. Much more than we have given so far. Let's make good our promise, that if we can't prevent a Russia attack, at least give Ukraine the tools that will enable Russia to totally fail. So that we will have at least partially keep our promises.