Why did the crusaders begin fighting other christians during the fourth crusade

Nreferring to the deportations during the armenian genocide, what does correspondent henry wood say was the “terrible feature of this deportation”? they will have to live in the interior. families will never be united again. it will end in inevitable death. children will be terrified.

Is the idea of containment relevant to american foreign and policy today why or why not

What are the contributions of the byzantine empire