Who was andrew carnegie and how did he get control of the steel industry?

battle of saint-mihiel, (12–16 september 1918), allied victory and the first u.s.-led offensive in world war i. the allied attack against the saint-mihiel salient provided the americans with an opportunity to use their forces on the western front en masse.

explanation:

it was a act of seld fesnse more over it was a peace treaty between the fogein contunries.