World War l and ll

A world war involving many large nations in all different parts of the world. The name is commonly given to the wars of 1914–18 and 1939–45, although only the second of these was truly global. These are two world wars happening in the past.

World War l or WWl
World War I (WWI), also known as the First World War, was a global war centred in Europe that began on 28 July 1914 and lasted until 11 November 1918. From the time of its occurrence until the approach of World War II in 1939, it was called simply the World War or the Great War, and thereafter the First World War or World War I. In America it was initially called the European War. More than 9 million combatants were killed: a scale of death impacted by industrial advancements, geographic stalemate and reliance on human wave attacks. It was the fifth-deadliest conflict in world history, paving the way for major political changes, including revolutions in many of the nations involved.

The war drew in all the world's economic great powers, which were assembled in two opposing alliances: theAllies (based on the Triple Entente of the United Kingdom, France and the Russian Empire) and the Central Powersof Germany and Austria-Hungary. Although Italy had also been a member of the Triple Alliance alongside Germany and Austria-Hungary, it did not join the Central Powers, as Austria-Hungary had taken the offensive against the terms of the alliance. These alliances were both reorganised and expanded as more nations entered the war: Italy, Japan and the United States joined the Allies, and the Ottoman Empire and Bulgaria the Central Powers. Ultimately, more than 70 million military personnel, including 60 million Europeans, were mobilised in one of the largest wars in history.

Although a resurgence of imperialism was an underlying cause, the immediate trigger for war was the 28 June 1914 assassination of Archduke Franz Ferdinand of Austria, heir to the throne of Austria-Hungary, by Yugoslav nationalist Gavrilo Princip in Sarajevo. This set off a diplomatic crisis when Austria-Hungary delivered an ultimatum to the Kingdom of Serbia, and international alliances formed over the previous decades were invoked. Within weeks, the major powers were at war and the conflict soon spread around the world.

On 28 July, the Austro-Hungarians fired the first shots in preparation for the invasion of Serbia As Russia mobilised, Germany invaded neutral Belgium and Luxembourg before moving towards France, leading Britain to declare war on Germany. After the German march on Paris was brought to a halt, what became known as theWestern Front settled into a battle of attrition, with a trench line that would change little until 1917. Meanwhile, on the Eastern Front, the Russian army was successful against the Austro-Hungarians, but was stopped in itsinvasion of East Prussia by the Germans. In November 1914, the Ottoman Empire joined the war, opening fronts in the Caucasus, Mesopotamia and the Sinai. Italy and Bulgaria went to war in 1915 and Romania in 1916.

The war approached a resolution after the Russian Tsar's government collapsed in March 1917 and a subsequent revolution in November brought the Russians to terms with the Central Powers. After a 1918 German offensive along the western front, the Allies drove back the Germans in a series of successful offensives and American forces began entering the trenches. Germany, which had its own trouble with revolutionaries, agreed to an armistice on 11 November 1918, ending the war in victory for the Allies.

By the end of the war, four major imperial powers—the German, Russian, Austro-Hungarian and Ottoman empires—ceased to exist. The successor states of the former two lost substantial territory, while the latter two were dismantled. The map of Europe was redrawn, with several independent nations restored or created. The League of Nations formed with the aim of preventing any repetition of such an appalling conflict. This aim failed, with weakened states, renewed European nationalism and the humiliation of Germany contributing to the rise of fascism and the conditions for World War II.

World War ll or WWll, WW2
World War II (WWII or WW2), also known as the Second World War, was a global war. It is generally considered to have lasted from 1939 to 1945, although some conflicts in Asia that are commonly viewed as becoming part of the world war had been going on earlier than that. It involved the vast majority of the world's nations—including all of the great powers—eventually forming two opposing military alliances: the Allies and theAxis. It was the most widespread war in history, with more than 100 million people, from more than 30 different countries, serving in military units. In a state of "total war", the major participants threw their entire economic, industrial, and scientific capabilities behind the war effort, erasing the distinction between civilian and military resources. Marked by mass deaths of civilians, including the Holocaust and the only use of nuclear weapons in warfare, it resulted in an estimated 50 million to 85 million fatalities. These made World War II the deadliest conflictin human history.

The Empire of Japan aimed to dominate East Asia and was already at war with the Republic of China in 1937, but the world war is generally said to have begun on 1 September 1939 with the invasion of Poland by Germany and subsequent declarations of war on Germany by France and the United Kingdom. From late 1939 to early 1941, in a series of campaigns and treaties, Germany formed the Axis alliance with Italy, conquering or subduing much of continental Europe. Following the Molotov–Ribbentrop Pact, Germany and the Soviet Union partitioned and annexed territories between themselves of their European neighbours, including Poland and the Baltic states. The United Kingdom and the other members of the British Commonwealth were the only major Allied forces continuing the fight against the Axis, with battles taking place in North Africa as well as the long-running Battle of the Atlantic. In June 1941, the European Axis launched an invasion of the Soviet Union, giving a start to the largest land theatre of war in history, which tied down the major part of the Axis' military forces for the rest of the war. In December 1941, Japan joined the Axis, attacked the United States and European territories in the Pacific Ocean, and quickly conquered much of the Western Pacific.

The Axis advance was stopped in 1942. Japan lost a critical battle at Midway, near Hawaii, and never regained its earlier momentum. Germany was defeated in North Africa and, decisively, at Stalingrad in Russia. In 1943, with a series of German defeats in Eastern Europe, the Allied invasion of Italy which brought about that nation's surrender, and American victories in the Pacific, the Axis lost the initiative and undertook strategic retreat on all fronts. In 1944, the Western Allies invaded France, while the Soviet Union regained all of its territorial losses and invaded Germany and its allies. During 1944 and 1945 the United States defeated the Japanese Navy and captured key Western Pacific islands.

The war in Europe ended with an invasion of Germany by the Western Allies and the Soviet Union culminating in the capture of Berlin by Soviet and Polish troops and the subsequent German unconditional surrender on 8 May 1945. Following the Potsdam Declaration by the Allies on 26 July 1945, the United States dropped atomic bombson the Japanese cities of Hiroshima and Nagasaki on 6 August and 9 August respectively. With an invasion of the Japanese archipelago (known as Operation Downfall) imminent, and the Soviet Union having declared war on Japanby invading Manchuria, Japan surrendered on 15 August 1945, ending the war in Asia and cementing the total victory of the Allies over the Axis.

World War II altered the political alignment and social structure of the world. The United Nations (UN) was established to foster international co-operation and prevent future conflicts. The great powers that were the victors of the war—the United States, the Soviet Union, China, the United Kingdom, and France—became the permanent members of the United Nations Security Council. The Soviet Union and the United States emerged as rival superpowers, setting the stage for the Cold War, which lasted for the next 46 years. Meanwhile, the influence of European great powers started to decline, while the decolonisation of Asia and Africa began. Most countries whose industries had been damaged moved towards economic recovery. Political integration, especially in Europe, emerged as an effort to stabilise postwar relations and cooperate more effectively in the Cold War.



What is WWlll?



WWlll is the cold war. The   Cold War, often dated from 1947 to 1991, was a sustained state of political and military tension between powers in the  Western Bloc , dominated by the   United States   with   NATO   among its allies, and powers in the   Eastern Bloc , dominated by the Soviet Union   along with the   Warsaw Pact. This began after the success of their temporary wartime alliance against   Nazi Germany, leaving the   USSR   and the US as two   superpowers   with profound economic and political differences. A neutral faction arose with the   Non-Aligned Movement   founded by   Egypt,   India , and   Yugoslavia ; this faction rejected association with either the US-led West or the Soviet-led East.

<p style="margin-top:0.4em;margin-bottom:0.5em;line-height:19.1875px;color:rgb(0,0,0);font-family:sans-serif;font-size:13px;">The name "Cold War" was coined by the English writer George Orwell, after the dropping of the first atomic bombs in 1945 had ushered in a new world also foreseen by H.G. Wells. It described a world where the two major powers—each possessing nuclear weapons and thereby threatened with mutually assured destruction (MAD)—never met in direct military combat. Instead, in their struggle for global influence they engaged in ongoing psychological warfare and in regular indirect confrontations through proxy wars. Cycles of relative calm would be followed by high tension, which could have led to world war. The tensest times were during the Berlin Blockade (1948–1949), the Korean War (1950–1953), the Suez Crisis (1956), the Berlin Crisis of 1961, the Cuban missile crisis (1962), the Vietnam War (1955–1975), the Yom Kippur War (1973), the Soviet war in Afghanistan (1979–1989), the Soviet downing of Korean Air Lines Flight 007 (1983), and the "Able Archer" NATO military exercises (1983). The conflict was expressed through military coalitions, strategic conventional force deployments, extensive aid to client states, espionage, massive propaganda campaigns, conventional and nuclear arms races, appeals to neutral nations, rivalry at sports events (in particular theOlympics), and technological competitions such as the Space Race. The US and USSR became involved in political and military conflicts in the Third World countries of Latin America, Africa, the Middle East, and Southeast Asia. To alleviate the risk of a potential nuclear war, both sides sought relief of political tensions through détente in the 1970s.

<p style="margin-top:0.4em;margin-bottom:0.5em;line-height:19.1875px;color:rgb(0,0,0);font-family:sans-serif;font-size:13px;">In the 1980s, the United States increased diplomatic, military, and economic pressures on the Soviet Union, at a time when the communist state was already suffering from economic stagnation. In the mid-1980s, the new Soviet President Mikhail Gorbachev introduced the liberalizing reforms of perestroika ("reorganization", 1987) and glasnost ("openness", ca. 1985). Pressures for national independence grew stronger in Central Europe, especially Poland. They reached a breaking point when Gorbachev refused to use Soviet troops to support the faltering government of East Germany in late 1989. Within weeks all the satellite states broke free from Moscow in a peaceful wave of revolutions (with the exception of the Romanian Revolution). The pressures escalated inside the Soviet Union, where Communism fell and the USSR was formally dissolved in late 1991. The United States remained as the world's only superpower. The Cold War and its events have left a significant legacy, and it is often referred to in popular culture, especially in media featuring themes of espionage (such as the internationally successful James Bond film series) and the threat of nuclear warfare.