The EU has by now significantly outpaid the US, and out-supported the US in Ukraine. However, for historical reasons, it lacks certain items which Ukrainians badly need (tactical ballistic missiles and anti-missile defense, to bring good examples).

On the matter of aircraft, I should especially emphasize that EU countries have given fighter aircraft, but the US has not. The US is currently attempting to get through the bureaucracy of approving a Swedish AWACS aircraft (with some US components) going to Ukraine.

Educate thyself here, military people use this resource and approve of it:

https://protectukrainenow.org/en/report