Founding fathers were believed to be isolationists and decided to concentrate in the development of the homeland.
Explanation:
At the time of America's founding, it was considered to be a weak nation and it was considered itself to be sensitive and vulnerable to encounter itself against the dominating powers of the world. Initially, America focused on developing its own land by building up military might and the ability to defend itself from other countries. Specially it worked upon negating the influence of European countries on America.
Hence America always practiced isolationism and neutrality when it came to wars against Europeans. But America had its own positive points and that is to maintain good industrial relations with other countries.
The Mongols could use either a massive army for battles or use smaller groups for ambushes (like guerilla warfare) as the need arose. Also, the Mongols were very well trained in the use of horses and bows. Also, from childhood the Mongols were taught to shoot and ride.
The correct answer is making government more responsible to the needs of the people
Before the progressive era, the government was mostly passive in its role in everyday life of people and mostly focused on foreign policies. However, the progressives started meddling with things like economy in order to help people and also with things such as human rights or suffrage rights or similar things in order to help various groups.