After WWII, Allies faced challenges of rebuilding Europe, addressing Nazi crimes, and establishing lasting peace.
Rising tensions between the United States and Great Britain versus the Soviet Union.
By 1949, Europe was divided into the Eastern Bloc (Soviet-aligned) and the Western Bloc (U.S.-aligned).
The Cold War emerged as both superpowers competed for global political and military dominance for 40 years.
Destruction in Europe Post-War
Extent of Ruin
WWII resulted in widespread destruction across Europe, with cities and infrastructure heavily damaged.
Major cities like Leningrad (now St. Petersburg, Russia), Warsaw (Poland), and Dresden (Germany) were left in ruins.
Surviving cities such as Prague (Czech Republic) and Paris (France) were fortuitously spared from extensive damage.
Human Cost of the War
Casualties in Europe
Death toll in Europe exceeded that of WWI, with at least 20 million Soviets dead (military and civilian).
Between 9-11 million civilians murdered by German forces, including approximately 6 million Jews during the Holocaust.
One in five Poles died during the war, including 3 million Polish Jews.
Overall casualty estimate stands at around 50 million deaths globally.
Displacement and Refugees
Migration Due to War
The post-war period saw mass displacement due to territorial changes and destruction.
Millions were uprooted (25 million in the USSR, 20 million in Germany).
13 million ethnic Germans fled west; many forced laborers sought to return home.
Displaced Persons (DPs) faced unique problems; Jewish DPs especially struggled with antisemitism and community loss.
UNRRA (United Nations Relief and Rehabilitation Administration) established camps, aiding millions of refugees from 1945 to 1957.
War Crimes and Denazification
Retribution Process
Germany and Austria were divided into occupation zones governed by the Allies (USA, UK, France, Soviet Union).
Each zone attempted to punish Nazi war criminals, with approximately 100,000 Germans and Austrians convicted.
The Nuremberg Trials (1945-46) were pivotal in addressing Nazi atrocities, resulting in death sentences for 12 prominent Nazi leaders.
The Cold War delayed thorough denazification efforts in both East and West.
Political Dynamics and the Seeds of the Cold War
Shifts in Alliances
Post-war tension arose from ideological differences between the USSR (communism) and the U.S./UK (capitalism).
The Tehran Conference (1943) and Yalta Conference (February 1945) laid groundwork but revealed diverging interests.
Soviet post-war influence expanded, especially in Eastern Europe, as communist governments began to take hold in countries like Poland, Hungary, and East Germany.
The Potsdam Conference (July-August 1945) saw President Truman confront Stalin over free elections in Eastern Europe, leading to heightened tensions.
Emerging Cold War Hostilities
Containment Strategy
The U.S. initiated the Truman Doctrine (March 1947) to contain communism's spread.
The Marshall Plan (April 1948) provided approximately $13 billion in economic aid to Western Europe to counter communist influence.
Berlin became a flashpoint: tensions escalated after the U.S. introduced new currency in Western zones, leading to the Berlin Blockade (June 1948 - May 1949).
The Berlin Airlift (June 1948 - September 1949) ensured West Berlin's survival, showcasing successful containment and strengthening U.S. resolve.
Formation of Military Alliances
NATO and Warsaw Pact
In 1949, NATO (North Atlantic Treaty Organization) was formed as an anti-Soviet military alliance, while the USSR countered with the Warsaw Pact (May 1955).
Europe was divided politically and militarily, establishing two hostile blocs.
Cold War Developments Globally
WW II Legacies
Cold War conflicts extended beyond Europe, with the Korean War (1950-1953) as a prime example of U.S.-Soviet tensions in non-Western territories.
Both sides engaged in an arms race, revolutionizing military technologies and leading to crises including the space race (1957 - launch of Sputnik).
Impact of Science and Technology
Transformation of Science
Advances in military technology during the war fostered what is termed "big science," which combined research with extensive funding to solve complex problems.
Following the war, one-quarter of Western scientists focused on weapon development; a significant shift towards applied sciences for both military and consumer goods occurred.
While military needs drove advancements, there were also significant benefits, such as increased agricultural productivity during the postwar green revolution (1945-196