In an event that had sparked an outbreak of world war 1.Archduke Franz Ferdinand, was shot to death by Gavrilo Princip,long by with his wife.The assassination set off a rapid chain of events, as Austria-Hungary immediately blamed the Serbian government for the attack. As large and powerful Russia supported Serbia, Austria asked for assurances that Germany would step in on its side against Russia and its allies, including France and possibly Great Britain.

In the picture soldiers dug trenches as protection from artillery. They have masses to protect from the gas which known as "Mustard gas". These powerful guns launched large, explosive shells for miles. Machine guns and barbed wire defended trenches.Trench conditions often filled with water mud, disease, vermin,human waste and dead soldiers, Many soldiers suffered from shell shock.

Area between opposing trenches, often filled with muddy artillery craters. The soldiers would go over the top charged enemy trenches dodging bullets,barbed wire and creates and leading to hand to hand combat some would go and get shot.When a artillery shell had landed just in front of an enemy trench, soldiers were often ordered to take control of the shell-hole and to try and spy on the enemy.

U.S. service members in World War I (1914-18) came to be dubbed doughboys—the term most typically was used to refer to troops deployed to Europe as part of the American Expeditionary Forces—but there are a variety of theories about the origins of the nickname. The name came from dough like the ginger man cookies dough boys. or dough. As a variation of this account goes, the men were coated in the dust of adobe soil and as a result were called “adobes,” which morphed into “dobies” and, eventually, “dough boys.” Among other theories, according to “War Slang”.

Supreme Court case concerning enforcement of the Espionage Act of 1917 during World War I. A unanimous Supreme Court, in an opinion by Justice Oliver Wendell Holmes, Jr.. The circulars urged "Do not submit to intimidation" but advised only peaceful action such as petitioning to repeal the Conscription Act. Schenck was charged with conspiracy to violate the Espionage Act by attempting to cause insubordination in the military and to obstruct recruitment.

Panama Canal
Roosevelt used the military to help Panama gain independence from Columbia. The United States then built the Panama Canal, which connected the Atlantic and Pacific Oceans. The canal helped the United States trade and move the military faster between the oceans.