To be classed as a citizen in fifth-century Athens you had to be male, born from two Athenian parents and over eighteen years old, and complete your military service. Women, slaves, metics and children were not allowed to become citizens.
The Colonial Minutemen, that's who they fought
The Britain's did not know the land that well so the Americans had and advantage
Patriots and loyalists agreed on very little.
Patriots and loyalists disagreed on the stance of Great Britain's involvement with America. Patriots believed that America should be independent, while loyalists believed that Great Britain should retain control over America.
I think that in delaying in mentioning the American colonies, Jefferson reveals his reluctance/lack of confidence in them and their fight for independence.
(*I didn't really know the context(I assume Thomas Jefferson), but just from a general character/human personality perspective, I believe this applies*).
Hope this helps! :)