Japan was the other country
The war pitted the Central Powers—mainly Germany, Austria-Hungary, and Turkey—against the Allies—mainly France, Great Britain, Russia, Italy, Japan, and, from 1917, the United States.
Out of all the things that made Constantinople an ideal location or a capital, it was its location on the Mediterranean Sea that was the most beneficial, since this allowed its trading opportunities with other nations to increase dramatically.
THe answer to the first question is the first answer
The answer to the second question is the thrid answer
The answer is southern kingdom of Judah