Which region did the ottomans control entirely or partially from the 1400s through the end of world war 1? a. caucasus region b. russian siberia c. soviet union d. central asia

The Ottomans controlled the Caucasus region entirely or partially from the '1400s' through the end of World War 1.

Explanation:

The Ottomans built one of the strongest empires in the history of the world and ruled for over 600 years. The Caucasus region comprising of present-day Azerbaijan, Armenia, Georgia and northeastern parts of Turkey served as the battleground between the Persian and the Ottoman forces for a prolonged period. During this conflict, the Ottomans gained and lost their control over the region several times.