This video from at least 7 years ago lays out some of the reasons why the Russians may well have gotten rather adventurous of late: they are running out of Russians, but they’re not running out of routes to invade Russia. So rather than cultivate good relations with the surrounding nations or get on about the task of making more Russians, they seem to have gone the other route of trying to seize all the invasion routes while they still have a military with which to do it. As the last year of their little two-week “military operation” has shown, that hasn’t gone so well.
Note the “demographic pyramid” he shows here. It lays out the population of Russia by age; a growing population has a wide base of young people, but back when this video was made (circa 2015) Russias base was looking kinda weak. However, it did seem to be growing somewhat:
So how is it looking today?
Oh, dear. It looks like baby-making fell off a cliff right after this guy made his video, so instead of things maybe getting better they’ve gotten much worse.
“Population pyramids” are interesting things to consider. Nations like this with shrinking young uns are in serious trouble; the pyramid for South Korea looks especially dire:
China’s not looking so good:
Nor is Japan:
Iceland, in contrast, looks kinda ok:
but if you really want to see where the population of the future is coming from, you need pyramids that look like this:
Or this:
The nations with wide bases will have greatly increased populations, with greatly increased pressures for those populations to leave and colonize low-population regions. The dying nations will, like Russia, likely try to defend themselves with constantly diminishing human resources, or they will, like much of Europe is currently doing, simply allow themselves to be colonized and replaced, culturally, religiously, ethnically.
Gonna be an interesting century.