When total fertility rates hover around 1, the traditional framework of geopolitical rivalry becomes almost obsolete. Nations won't be competing for dominance anymore—they'll essentially be contending over who inherits what's left. Population collapse rewrites every rule in the game. Countries with unsustainable birth rates face a shared fate: economic stagnation, labor shortages, and shrinking tax bases. The competition that once shaped centuries of conflict transforms into something grimmer: a struggle for resources among declining civilizations. At this point, territorial conquest loses its appeal. What good is winning if your population can't sustain it?