Ukraine's military intelligence released data on Wednesday which outlined the growing difficulties Russia has in producing the Kh-59M2/M2A missile, which has a two-stage solid-fuel propulsion system and a 120-mile range. The GUR said that of the 116 companies involved in making the weapon around 50 are unsanctioned by any country.

A peace deal that requires Kyiv to accept swapping Ukrainian territory with Russia would not only be deeply unpopular. It also would be illegal under its constitution.