Permeation and Consequences of World War I in Southern Khorassan

World War I, 1914-1918, influenced lots of countries, each of which trying to use some implements to win the war, among them the Afghan's intrigue against the Allies. This strategy caused the importance of Khorassan, a neighbor to Afghanistan, in the eyes of the United Armies. One of their most important affairs was to create "the belt in east of Iran" including Russian and British forces of the United Armies to Afghanistan. Some of its political, economical and social consequences of such issues are considered in this paper.