I refuse to believe that the US Armed Forces are running low on funding for anything.

uWu pweese were just a smol bean little military

The pentagon is running low on cash?

Sure.

My understanding is that Ukraine hasn't yet drawn on any of it's lend lease grants which IIRC are around $7b, so maybe that can plug the gap?

This is the best summary I could come up with:

WASHINGTON (AP) — The Pentagon is warning Congress that it is running low on money to replace weapons the U.S. has sent to Ukraine and has already been forced to slow down resupplying some troops, according to a letter sent to congressional leaders.

Congress averted a government shutdown by passing a short-term funding bill over the weekend, but the measure dropped all assistance for Ukraine in the battle against Russia.

The weapons include millions of rounds of artillery, rockets and missiles critical to Ukraine’s counteroffensive aimed at taking back territory gained by Russia in the war.

He added that without additional funding now, the U.S. will have to delay or curtail air defense weapons, ammunition, drones and demolition and breaching equipment that are “critical and urgent now as Russia prepares to conduct a winter offensive.”

Mark Cancian, a senior adviser at the Center for Strategic and International Studies, said if the aid doesn’t keep flowing, Ukrainian resistance will begin to weaken.

Many lawmakers acknowledge that winning approval for Ukraine assistance in Congress is growing more difficult as the war grinds on and resistance to the aid from the Republican hard-right flank gains momentum.

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