Russia makes the wars as its population were growing at the 18-19th century "explosive" rates of growth while it is now shrinking everywhere. To that, one should add an incredibly high "export" of highly skilled labor force: 1917, 1945, 1975, 1989-95, and now.
The solution is simple: stop the war, try to bring educated people back (as China is doing), normalize life so that the population growth rate can go up.
One green island holding a pink empire together