Because in 1867, Ulysses S. Grant charged Sheridan with pacifying the Great Plains, where warfare with Native Americans was wreaking havoc. In an effort to force the Plains people onto reservations, Sheridan used the same tactics he used in the Shenandoah Valley: he attacked several tribes in their winter quarters, and he promoted the widespread slaughter of American bison, their primary source of food.
The most important was The Battle of the Somme (1 July - 18 November 1916) was a joint operation between British and French forces intended to achieve a decisive victory over the Germans on the Western Front. For many in Britain, the resulting battle remains the most painful and infamous episode of the First World War The AEF helped the French Army on the Western Front during the Aisne Offensive (at the Battle of Château-Thierry and Battle of Belleau Wood) in the summer of 1918, and fought its major actions in the Battle of Saint-Mihiel and the Meuse-Argonne Offensive in the latter part of 1918.
Egyptians took control first. But then they began to weaken, so the Kingdom of Kush was established about 1070 B.C. Then under the leadership of Piye, Kush moved north and conquered Egypt.