Why was dith pran's work in cambodia significant?

In ww1 where did france find laborers to with their war movement? ? & what country did the french fear?

Plz ive been stuck on this question forever. in 1753 george washington was sent on a mission to a. build a fort at the point where the allegheny and monongahela rivers form the ohio river. b. attack the french at fort duquesne. c. attack the french at fort neccessity. d. deliver a message to the french demanding that they leave the ohio river.

Why did alexander go primarily east and south from macedonia and greece in his conquest