What kept most foreign invaders from China's lands? fearsome samurai
natural barriers such as seas, mountains, and deserts
soldiers placed along the Silk Road
Mongol warriors hired by China's emperors

they have different colored collars

it provided for equal trade rights among nations in china.

on april 6, 1917, the u.s. joined its allies--britain, france, and russia--to fight in world war i. under the command of major general john j. pershing, more than 2 million u.s. soldiers fought on battlefields in france.

majority rule is most important in a representative democracy.