Historians often rely on both primary and secondary sources when supporting an argument, since it's important to use secondary sources to put the argument in context, and primary sources in order to make an original point.
Answer:
The Japanese don't have a president. Perhaps you are referring to the Prime Minister, in which case the first Japanese Prime Minister (in the modern sense, so excluding emperors) was Itō Hirobumi.
Answer:
1. The style of fighting in America was much different than in Europe. Guerilla Warfare was popular among the American armies.
2. It is easier to supply your armies when you are fighting on your home turf. England had to load their supplies on ships while the colonists already had their supplies close to them.
Some other reasons:
The French.
British Arrogance.
Political Division in Great Britain.
The Sons of Liberty would be most supported by the Patriots.
Patriots were the people in Colonial America who rebelled against the British Crown. The Sons of Liberty was a secret organization that worked to undermine British power through demonstrations, threats and sometimes violence.
