Elements in the periodic table are grouped as metals, metalloids or semimetals, and nonmetals. The metalloids separate the metals and nonmetals on a periodic table. Also, many periodic table have a stair-step line on the table identifying the element groups.
Quick Facts. Background. The Second Battle of the Marne marked the turning of the tide in World War I. It began with the last German offensive of the conflict and was quickly followed by the first allied offensive victory of 1918.
Belleau Wood Campaign. The Battle of Cantigny, fought on 28 May 1918 was the first American offensive of World War I. The U.S. 1st Division, the most experienced of the seven American divisions then in France and in reserve for the French Army near the village of Cantigny, was selected for the attack.