I think the answer is 12 i’m not sure
They had the support of the church, the military was loyal , they had a strong claim.
They might have failed at waging war properly. (Napoleon in Russia 1812) They couldn't deal with the revolts (French revolution), they might have brought an economic downfall to their country.
They might have expanded lot. (The roman empire was the largest under emperor Trajan)
they let people build great buildings. They commissioned musicians to perform masterpieces
Berlin Blockade: 1948
Korean War: 1950
NATO Formed: 1949
Truman Doctrine: 1947
It was called “A Portuguese Expedition”