russia are part of csto. kinda russian version of nato. current members includes armenia. in theory, they could call their alies, like belarus, kazahstan, kyrgizstan and tajikistan to join. but: a) it is not a war. it is "special military operation" b) most of them said that they will not join "special military operation" few weeks after invasion. so v.putin offered something to kim. in exchange for troops. may be it was some train carriages with wheat. may be some truckloads of vegetable oil. who knows.
Latvia