spat
.700 Nitro Express
Ukraine has a modern professional military.Giving them heavy weapons isnt going to work. tanks artillery ect all need parts and technicians to work on them. They need trained people to keep them running. Stingers and javlins dont require any work , but tanks APC's, big guns do .Tankers require team work, they move as a unit not an individual tanks . Ukraine is about to get a dose of reality real soon.
They're not giving these to a bunch of guerrillas.
Also, they shouldn't need too much complex maintainence in the first month or two. By then their mechanics can be trained up on the new gear.