What are the reasons for the rise and decline of the Nine Kingdoms in The Rise of Great Powers?

Reasons for the rise and decline of the nine countries:

1. Portugal and Spain:

Rise: These two countries were the first to become centralized countries after reforms. Then a lot of capital was accumulated.

Decline: Merged by Dutch businessmen, the economy slowly declined.

2. Netherlands:

Rise: Through credit, bankruptcies, and joint-stock East India Company to gather large amounts of capital.

Decline: The market was opened up by Britain, which had completed the industrial revolution, and it declined rapidly.

3. Britain:

Rise: Britain is on an island with good geographical conditions. It was the first to complete the Industrial Revolution and quickly became the world's hegemon.

Decline: During World War II, it lost its hegemonic status.

4. France:

Rise: After the French Revolution and the establishment of Napoleon's empire, it became rapidly powerful.

Decline: failed to dominate in World War II and lost its hegemonic status.

5. Germany:

Rise: Prime Minister Bismarck’s iron-blooded policy and compulsory education made the country’s economy and military rise rapidly, and completed the second industrial revolution, and its industry also rose to powerful nation status.

Decline: Lost the Second World War, and its capital was divided up by other countries.

6. Japan:

Rise: After the Meiji Restoration, the country’s military, economy, education and other aspects have developed rapidly, coupled with the war reparations from China, Japan has accumulated a large amount of capital.

Decline: As the defeated party in World War II, its capital was divided up by other powers.

7. The United States:

Rise: Being in the Americas, with no powerful countries around, and good geographical conditions, the United States developed rapidly and carried out the industrial revolution in time.

Decline: The United States has never declined.

8. The Soviet Union:

The rise: established the Communist Party and robbed European technology at low prices during the Great Depression.

Decline: inability to compete with capitalism, corruption.