Ukraine asked for military assistance in its war with Russia, and one of the items was the M4 carbine and ammunition. Why?
I prefer the M4 over the AK, but I'm not a country at war that would have to juggle support and ammunition for radically different types of combat rifles in combat. Why would Ukraine (and Iraq before them) choose to do so? It definitely adds to the logistics tail.
(Given that part of the answer might be political - from Ukraine's point of view - I decided to post this question in General Discussion instead of Rifles and Carbines.)