Answer:
phalanx
Explanation:
in military science, tactical formation consisting of a block of heavily armed infantry standing shoulder to shoulder in files several ranks deep. Fully developed by the ancient Greeks, it survived in modified form into the gunpowder era and is viewed today as the beginning of European military development.
They helped move stuff around to trade and they needed little food and water to survive.
Move the Native Americans to reservations, thus making room for the influx of white settlers.
He backed the garbage union.
I believe they were on strike.
Americans politicians view US imperialism during the end of the 19th century as a "responsibility" to civilize and help the distant lands.