- Russia is generating 100+ tanks a month, largely replacing its battlefield losses, UK intel said.
- That rate is likely only possible if it's taking old tanks out of storage, experts told BI.
- Old tanks are weaker and Ukraine has destroyed many of them, but they still tie up resources.
A UK intelligence claim that Russia is generating more than 100 tanks a month likely means it is relying on older models kept in storage, but it can't keep pulling them out forever, experts told Business Insider.