Not a lot. They’re working on it though.

The most direct route from Russia to the US is North though the Arctic - so during the cold war there was a lot of first strike detection stuff setup in Arctic areas.

Trump’s decision to tear-up the original 2015 accord showed he cannot be trusted or taken seriously

Yeah, funny that.

From what I can tell it’s not that the airplane is unreliable, but the logistics and training for maintenance and repair haven’t been ironed out.

https://www.gao.gov/products/gao-23-105341

The gao cites issues with the contractor not sharing technical details, lack of availability of parts, lack of training, etc.