According to Washington, to stop a rebellion, you need a strong armed force to crush it. During his time, the US is just untied. Many Americans doesn't trust the government. To show power and authority, Washington believes that when a rebellion is formed, you need to force it to stop. The federal government is the power to check these rebellions. If the government don't, who would protect the citizens and their human rights?
Before the civil war cities were mainly industry based. Manufacturing goods was really the only thing that was done in cities.
The senate power of advice and consent does not apply to "executive orders," since although the Senate can approve Presidential appointments in many cases, executive orders are not prone to such approval.
Japan needed more land to feed its people, it turned to war for this. When they started attacking small nations no one was too worried. Then they went for bigger areas and the United States retaliated. It is said the U.S.A did nothing to stop Japan at the beginning, but they did. The United States embargoed Japan, this made even more complications in the Japanese empire. Japan later went on to attack Pearl Harbor and the Philippines as a result. Keep in mind, the only reason America embargoed japan was due to their aggressive expansion.
I hope I have been of assistance. Have a great day! :)