1840 whether slavery should expand to the terriories

The consequences of the Mexican War during the late 1840's contributed to the issue of slavery at that time. The issue reached to the extent of debating whether slavery has to expand to other territories.

answer; ///i believe that the correct answer is (a); ///the crystal will

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.