What weaknesses existed in the british plan to divide the americans

The British  weaknesses is a subject studied by historians.

But how was it possible if the Britain's military was the best in the world. Theirs soldiers were well equipped, well disciplined, well paid and well and well feed.

However it was a situation which they had to confront. It does refer the British fought a war far from home. Military orders, troops and supplies sometimes took months to reach their destinations. It means that the British had an extremely difficult objective.

In summary, the geographic vastness of the colonies  proved a hindrance to the british effort. Despite occupying every mayor city, the British remained as at a disadvantage.  

not sure might be he acquired the entire oregon territory from great britain

your mothers brothers brother in law would be your father.