Archived version: https://archive.ph/exXWL
Archived version: https://web.archive.org/web/20231020013821/https://www.bbc.com/news/world-us-canada-67163903
Archived version: https://archive.ph/exXWL
Archived version: https://web.archive.org/web/20231020013821/https://www.bbc.com/news/world-us-canada-67163903
The US arsenal certainly was bigger until quite recently I think.