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Military history of the United States during World War II. Key American military officials in Europe.

Military history of the United States during World War II

The military effort was strongly supported by civilians on the home front, who provided the military personnel, the munitions, the money, and the morale to fight the war to victory. World War II cost the United States an estimated $341 Billion in 1945 dollars - equivalent to 74% of America's GDP and expenditures during the war. In 2015 dollars, the war cost over $4.5 Trillion.[5][6] Origins[edit] American public opinion was hostile to Hitler's Germany, but how much aid to give the Allies was controversial. American pilots of No 71 'Eagle' Squadron rush to their Hawker Hurricanes, 17 March 1941. American volunteers[edit] P-40's of 3rd Squadron, 1st American Volunteer Group "Flying Tigers" flying over China, 28 May 1942 Prior to America's entry into World War II in December 1941, individual Americans volunteered to fight against the Axis powers in other nations armed forces.

Command system[edit] In 1942 President Franklin D. Europe first[edit] U.S. United States. Coordinates: The United States of America (USA), commonly referred to as the United States (U.S.) or America, is a federal republic composed of 50 states, a federal district of Washington, D.C., five major territories, and various possessions.

United States

[fn 1] The 48 contiguous states and Washington, D.C., are in central North America between Canada and Mexico. New Orleans. New Orleans (/nuː ˈɔːrlɪnz/,[2][3] /nuː ˈɔːrliənz/, /nuː ɔːrˈliːnz/, or /ˈnɔːrlənz/; French: La Nouvelle-Orléans [la nuvɛlɔʁleɑ̃]) is a major United States port and the largest metropolitan area in the state of Louisiana.

New Orleans

The population of the city was 343,829 as of the 2010 U.S. Census.[4][5] The New Orleans metropolitan area (New Orleans–Metairie–Kenner Metropolitan Statistical Area) had a population of 1,167,764 in 2010 and was the 46th largest in the United States.[6] The New Orleans–Metairie–Bogalusa Combined Statistical Area, a larger trading area, had a 2010 population of 1,452,502.[7] The city is named after the Duke of Orleans, who reigned as Regent for Louis XV from 1715 to 1723, as it was established by French colonists and strongly influenced by their European culture. New Orleans is located in southeastern Louisiana, straddling the Mississippi River. Before Hurricane Katrina, Orleans Parish was the most populous parish in Louisiana. History 20th century Civil Rights Movement. National Basketball Association. The National Basketball Association (NBA) is the pre-eminent men's professional basketball league in North America, and is widely considered to be the premier men's professional basketball league in the world.

National Basketball Association

It has 30 teams (29 in the United States and 1 in Canada), and is an active member of USA Basketball (USAB),[2] which is recognized by FIBA (also known as the International Basketball Federation) as the national governing body for basketball in the United States. The NBA is one of the four major North American professional sports leagues. NBA players are the world's best paid sportsmen, by average annual salary per player.[3][4] History Creation and merger Cities that hosted teams that played for more than one season in the NBA and/or BAA from 1947–1959. Arizona. Saguaro cactus flowers and buds after a wet winter.


This is Arizona's official state flower. Dam. The word dam can be traced back to Middle English,[1] and before that, from Middle Dutch, as seen in the names of many old cities.[2] History[edit] Ancient dams[edit] Early dam building took place in Mesopotamia and the Middle East.


Dams were used to control the water level, for Mesopotamia's weather affected the Tigris and Euphrates rivers. The Ancient Egyptian Sadd-el-Kafara Dam at Wadi Al-Garawi, located about 25 km (16 mi) south of Cairo, was 102 m (335 ft) long at its base and 87 m (285 ft) wide. Mount St. Helens. Mount St.

Mount St. Helens

Helens is most notorious for its catastrophic eruption on May 18, 1980, at 8:32 a.m. PDT,[2] the deadliest and most economically destructive volcanic event in the history of the United States. Fifty-seven people were killed; 250 homes, 47 bridges, 15 miles (24 km) of railways, and 185 miles (298 km) of highway were destroyed. A massive debris avalanche triggered by an earthquake measuring 5.1 on the Richter scale caused an eruption[3] that reduced the elevation of the mountain's summit from 9,677 ft (2,950 m) to 8,363 ft (2,549 m), replacing it with a 1 mile (1.6 km) wide horseshoe-shaped crater.[4] The debris avalanche was up to 0.7 cubic miles (2.9 km3) in volume.

The Mount St. As with most other volcanoes in the Cascade Range, Mount St. Geographic setting and description. Caldera. Mount Mazama's eruption timeline, an example of caldera formation A caldera is a large cauldron-like volcanic depression, a type of volcanic crater (from one to dozens of kilometers in diameter), formed by the collapse of an emptied magma chamber.


The depression often originates in very big explosive eruptions. Iwo Jima. Iwo To (硫黄島, Iō-tō?

Iwo Jima