Actually, the West is running out of arms to send Ukraine. A CNBC report speaks of America being out of 155mm guns and ammunition (manufacturers are being sought).
The U.S. and Europe are running out of weapons to send to Ukraine (cnbc.com)
The US has given Ukraine nearly a million 155 mm artillery shells. Now it's looking for US companies to build more of them. | Business Insider India
It has already sent ten years’ production of Javelins! The latest HIMARS “sent” haven’t been built yet.
The highly-prized HIMARS artillery system in the US’s latest $1.1 billion security assistance package for Ukraine will take a few years to be built, a Pentagon official said Wednesday.
www.bloomberg.com
"The highly-prized HIMARS artillery system in the US’s latest $1.1 billion security assistance package for Ukraine will take a few years to be built, a Pentagon official said Wednesday. The latest security assistance package is meant to be the beginning of a contracting process for Ukraine’s mid-to-long-term defense, the US defense official said. Other equipment will take six to 24 months to get to Ukraine as well, the official added."
Similar stories from Europe. The available stock of ex-Soviet equipment is gone – 28 (“modernized” 20 years ago) T55 tanks scrounged from Slovenia are the latest “wonder weapon”.
Weapons stocks in the European Union are running low as member countries continue to sends arms and ammunition to Ukraine.
www.breitbart.com
Slovenia transfers 28 of its own M-55S tanks to Ukraine. This is a deep modernization of the Soviet T-55 tank.
mezha.media
The West does not have the industrial capacity to sustain modern war. Everything that has been sent to Ukraine so far has been from existing stocks. Western militaries must either start cannibalizing their standing armies or stop. Then what? Western weapons made the September offensive possible.
On the other hand, there are many videos of trains carrying heavy equipment west. I’ve seen tanks, Mstas, BM-21s, Iskanders and lots of BMPs. Nothing suggests that Russia is running out of anything. This suggests preparations for a large-scale Russian Army armored offensive along traditional deep penetration doctrine.
The status of the new four regions opens the possibility of more forceful actions by the Russian Armed Forces as such because they are “defending the Motherland”.
There is a good deal of plausible speculation that the 300 thousand man call up may free up soldiers in the rear. If so, the effect of the extra troops may be felt sooner than many expect.
As far as razputitsa (распутица), winter and other things beloved of TV commentators, it’s not the USSR in 1941. There are a lot of paved roads and Russians are well-equipped and experienced for fighting in winter. Therefore there is no guarantee that things will be quiet for four or five months.