The Union Pacific and the Central Pacific.
The difference is that the older union tend to pursue practical things such as fair wages, number of holidays, and working hours.
The newer union on the other hand, tend to focus on something that related to social justice, such as fair treatment between each races, same opportunity to rise the ladder, etc.
The correct answer is: The samurai and daimyo restored the emperor to power and worked to reform Japan.
Indeed, Japan had remained fiercely isolated from the rest of the world for centuries. Japan especially mistrusted Western powers sine they had better technology and were extremely aggressive and powerful. In 1853, American Commodore Matthew C. Perry, arrived with four US military, steam-powered ships which were equipped with very modern and destructive guns. The Japanese had no means to oppose him in any manner and yielded to his demands, that Japan sign an official treaty if trade and commerce with the United States. This treaty, the Convention of Kanagawa angered many of the highest-ranking samurais for whom it was seen as a capitulation. They decided that Japan was way behind Western powers and that unless they imposed radical societal, economic reforms, they would be dominated by the West. They managed to remove Tokugawa Yoshinobu, the last Shogun of Japan and restored the Emperor.
Traditionalist samurais were incensed by this action and a civil war ensued, which reformist samurais were able to win with the help of Western technology and military advisors. Most power was transferred to the Emperor and Japan started massively importing technology and methods of social organization from many different countries in the west.
President Jimmy Carter attempted to end hostilities between the groups that fought the war between Israeli and Arab through helping in creating a way to form an agreement or a peace treaty which is called as the Camp David Accords.
Invasions of people--many of the groups came as military and fought the Romans as invading forces.
Counterclaim--they were migration patterns as they were attempting to gain access to an empire with advanced trade and education. Migrating to the Roman Empire gave a person or group with extra resources.
