Which city was the capital of the incan empire?

Cusco was the capitol of the inca empire.

-Steel jelly

explanation:

japan participated in world war i from 1914 to 1918 in an alliance with entente powers and played an important role in securing the sea lanes in the west pacific and indian oceans against the imperial german navy as the member of the allies.

answer; i believe the correct answer is (the willamete valley);