"Escalation management" through "slowly boiling the frog" combined with lack of coherent strategy for the war, partially because some western politicians are afraid of Russia's tantrum in case of Ukrainian victory(using nukes if Crimea is lost, for example), and that are balancing aid so it's enough for Ukraine not loosing, but not enough for Ukraine winning. Equipment that would've been sufficient to win the war in 2022(before Russia constructed massive defensive lines) was delivered in 2023, largely in the second half of 2023. And there's not that many signs that it might change.

More important question is how is it that you don't know that NATO has given Ukraine all of those?

Patriot and NASAMs batteries have been defending Ukraine for a while. ATACMS have been used against Russian air fields. F-16s aren't being used there is a lot of training first, but they have been delivered.

Just domestic politics under effective Russian influencing campaigns ("America first"). If the Democrats were against Ukraine and pro-Russia, Republicans would be violently pro-Ukraine. There is no other reason.

Trying to postpone a direct conflict with Russia perhaps? Attempting some Chamberlainian achievement in preserving peace against a ruthless and untrustworty agressor? Hopeless efforts of course but the stakes and anticipated damages are quite high actually for being not too eager escalating.

They have anti-air and ATACMs. Jets are coming. Their pilots are training.

https://www.voanews.com/a/ukrainians-start-f-16-training-in-...

https://www.bbc.com/news/world-europe-67135163

https://www.nytimes.com/2024/01/06/world/europe/ukraine-patr...

The republicans mostly

The theory I've heard is it's to limit US tech being used to strike into Russia.

The US did give them a lot (HIMARS, Bradleys, ATACMS, a few Abrams, cluster munitions) and Europe did too (Storm Shadow, Scalp, Leopards).

I don't remember whether the Patriot batteries came from the U.S. or were traded out of some European countries.

The U.S. could have supplied a lot of the advanced weapons much sooner, but Biden dithered. Supposedly Ukraine will get F-16s any day now.

For now, U.S. aid is being blocked by Republicans in Congress who insisted that Ukraine and Israel aid be lumped into a border bill, but then they abandoned the border bill and speaker Johnson is blocking a vote in the House. There's no policy reason for this, it's just that they want to make Biden look bad in an election year and a lot of representatives are afraid of angering Trump and his supporters.

Maybe because, on the other side of the table sits a lunatic with a massive amount of atomic bombs. Also, because Ukraine is not NATO.

It's Trump's fault for telling his sheep not to pass the bipartisan immigration bill which included aid for Ukraine.

Because this whole shit is just another cold war meant to drive the interest of power on both sides. The west got justification to jack up prices on everything in the name of "energy crisis because we need to do the right thing" and the East can expand their power and nationalize western businesses in the name of "sanctions" that happen to be relabeled and still run profitably through shell companies. It's all just another big squeeze to wring some more out of the normal folk.