'Ay, the TOW is not 'leftover cold war shit', it is a tank-killing juggernaut. As long as you don't mind standing absolutely still for like 20 seconds after firing the missile (so the missile can track the target).
If the satellite images of their boneyards are to be believed, it appears that they've used up anything that was newer than the 1950s, and are rapidly depleting all their leftover WWII and 1950s equipment. I saw a thread the other day that someone linked pics, and they're down to less than 20% of their "backup" equipment.
It does annoy me that basically countries are giving their surpless weapons to Ukraine, only to buy new weapons for themselves. It's still growing the weapons industry, which is keen to encourage war across the globe, as that leads to money.
Meanwhile Ukraine are receiving weapons not as donations, but bilateral aid agreements. This means that Ukraine is expected to pay them back some day. In reality, Ukraine will likely never be able to pay them back (and even if they can they will be left financially destitute either way) so all that's going to happen is the debt will be written off. So current governments can fiddle their books and say "yes, we've got a deficit, but we're going to get so much money back in the future!!" only for that debt to be written off. But hey, that's a future government's problem.
The United Kingdom still has amounts outstanding from World War II and its immediate aftermath which it continues to repay on a regular basis. World War II-era claims on Iran have been incorporated into the claims being adjudicated by the Iran-U.S. Claims Tribunal, established after the 1979 Iranian revolution. Lend Lease claims against the former Soviet Union arising from World War II were settled in a 1972 agreement between the U.S. and U.S.S.R. In the 1972 agreement, the U.S.S.R. pledged to make three initial payments totaling $48 million and to repay the remaining Lend Lease debt once the United States had granted Most Favored Nations (MFN) trade status. The Soviet Union made the three initial downpayments, but because it did not obtain MFN status at that time -- because of conditions set forth in the 1974 Trade Act -- its obligation to make the remaining payments toward its Lend Lease debt was not triggered before the dissolution of the U.S.S.R. However, MFN status was extended to the Russian Federation in 1992, and accordingly, in 1993, Russia signed an agreement with the U.S. in which it acknowledged its liability and agreed to a repayment schedule for the former U.S.S.R.'s Lend Lease debt. Finally, the U.S. continues to work for a resolution with Taiwan of the issue of debts arising from World War II-era loans extended to China.
(Note, this document was written in 2000. UK paid off it's WWII debts in 2006.)
It’s still growing the weapons industry, which is keen to encourage war across the globe, as that leads to money.
Maybe if the rest of the world actually built up a decent army, instead of leaving all of the military matters to the US, then the US wouldn't have to spend half of it's goddamn budget on the military-industrial complex.