alternate demographics

Australia today has 26 million people and a relatively small place on the global stage or in its own region, with a POD of 1800 how can it be as powerful and prosperous as possible?

Say Japan is able to scramble up enough cash, perhaps from a greater victory or a much earlier Sino-Japanese War, to make war on Spain for her colonies in the East Indies before the Unites States does in 1898. In addition, the loot from this victory against may allow Japan to pursue a purchase...

IOTL the USSR underwent rapid demographic transition coupled with catastrophic events that stripped its population to levels well below its potential, given Russia's vast land and resources. With a POD after the second world war, is it possible for the Soviet Union to encourage rural settlement...

What's the maximum population that the territory of OTL Greece could support?

What's the maximum population that the territory of OTL Bulgaria could support?

Inspired by the maximum population of Denmark and Highest Scandinavian population possible thread, what is the possible maximum population of Sweden could support? how high do you think the it could have been?

With a POD after it's independence in 1810's, what's the largest possible population for Argentina they can support by Now?

What's the maximum population that the territory of Poland could support?

What could the maximum population of 1914 borders Hungary could support?

What's the maximum population that the territory of OTL Belarus could support?

What's the maximum population that the territory of OTL Romania could support?

Prologue: Not a European War. 9th of July, 1755 --- " But [General Braddock] had too much self-confidence, too high an opinion of the validity of regular troops, and too mean a one of both Americans and Indians." -Benjamin Franklin, "A Vain Remonstrance with General Braddock"* The almost fifty...