in 1973 United Kingdom joined the EU
It didn't. The loss of the colonies after World War 2 was the start of the decline of Britain.
Yes, both do still have strong relations with the countries that belonged to them. The United Kingdom still has connections through the Commonwealth for example.
Because the original colonists were from the Netherlands and most chose to remain in the New World and elected to remain there after England took charge of Dutch colonies. They became loyal Englishmen for economic reasons.
Some French colonies had strong independence movements.
Kush was a fully functional kingdom even without controlling the Lower Nile Valley. It also maintained a strong relationship with Aksum in Ethiopia which was not threatened by Assyrian Imperialism.
nope
Strong colonies
french
Its a strong indication of a blown head gasket
french
french
The Kingdom of Cusco