I believe the answer you're looking for is the factory system.
They had more in common than different. The Samurai were "owned" by Damyos, and the Knights were "owned" by Lords. They both fought for there Damyos or Lords, and acted as "mercenaries".
it usually happen during the colonial policies when people or Organisation do not coorperate together
Answer:
Americans felt that the distance between them and the war would keep them safe. Americans did not want to get involved in another war in Europe.
Answer:
In the Roman republic, what they do is that they have the overpowering vote over the leader of the country. They also convince the king's right hand man, the trusted adviser, to engage and enlighten the other republic's claims in the field.