It protected the United States from competitors located in foreign countries.
A. The Berlin Airlift
The Soviets couldn't counter it ,so they eventually gave up and reunited Berlin.
Answer:
One of the saddest facts about World War I is that millions died needlessly because military and civilian leaders were slow to adapt their old-fashioned strategies and tactics to the new weapons of 1914. New technology made war more horrible and more complex than ever before. The United States and other countries felt the effects of the war for years afterwards.
The popular image of World War I is soldiers in muddy trenches and dugouts, living miserably until the next attack. This is basically correct. Technological developments in engineering, metallurgy, chemistry, and optics had produced weapons deadlier than anything known before. The power of defensive weapons made winning the war on the western front all but impossible for either side.
The Spanish missions in the Americas were Catholic missions established by the Spanish Empire during the 16th to 19th centuries in the period of the Spanish colonization of the Americas. ... The missions created by members of Catholic orders were often located on the outermost borders of the colonies.
