Leonid Brezhnev was formally elected as the Chairman of the Presidium of the Supreme Soviet (President) on June 16, 1977, while already serving as the General Secretary of the Communist Party. This consolidation of power allowed him to exert total control over both the party apparatus and the state, marking a period of stability and stagnation in Soviet politics.

The Cold War is widely recognized as beginning in 1945, immediately following the defeat of Nazi Germany and Imperial Japan. The geopolitical vacuum left by the collapse of traditional European powers led to a bipolar international system dominated by the United States and the Soviet Union. This era was defined by ideological competition, proxy wars, and the nuclear arms race.

The Marshall Plan, officially the European Recovery Program, was a U.S. initiative to provide over $12 billion in economic assistance to help rebuild Western European economies after the end of World War II. The goal was to restore industrial capacity, remove trade barriers, and prevent the spread of communism by fostering economic stability.

The year 1945 marks the end of the Second World War, which was the culmination of centuries of intermittent and devastating conflicts in Europe. The conclusion of this war led to the establishment of the United Nations and a significant shift in the European state system, moving away from the cycle of total wars that characterized the first half of the 20th century.

The Marshall Plan was a massive American initiative to provide economic aid to Western Europe following the devastation of World War II. Its goals were to rebuild war-torn regions, remove trade barriers, modernize industry, and prevent the spread of communism. By fostering economic stability, the United States aimed to create a stable environment for democratic governance and prevent another global conflict.

The division of Korea occurred in 1948 following the failure to hold unified elections across the peninsula. The establishment of the Republic of Korea in the south and the Democratic People's Republic of Korea in the north solidified the geopolitical divide along the 38th parallel, setting the stage for the subsequent Korean War and enduring regional instability.

Following the end of World War II, the global order was defined by a bipolar structure. The United States led the capitalist bloc, while the Soviet Union led the communist bloc. This ideological and geopolitical division characterized the Cold War era, leading to the formation of competing military alliances and spheres of influence that dominated international relations for several decades.

The Non-Aligned Movement was formally established in 1961, largely through the diplomatic efforts of leaders like Jawaharlal Nehru of India and Josip Broz Tito of Yugoslavia. The movement was designed to provide a platform for developing nations to maintain independence from the bipolar power struggle between the United States and the Soviet Union during the Cold War.

The Atlantic Charter was a pivotal policy statement issued on August 14, 1941, by U.S. President Franklin D. Roosevelt and British Prime Minister Winston Churchill. It outlined their vision for the post-World War II world, emphasizing self-determination, free trade, and international cooperation. This document provided the ideological framework for the Declaration by United Nations in 1942 and ultimately influenced the drafting of the United Nations Charter in 1945.

The Atlantic Charter was a pivotal policy statement issued by the United States and the United Kingdom on August 14, 1941. It defined the Allied goals for the post-World War II world, including self-determination, free trade, and freedom of the seas. While it aimed to dismantle the conditions that led to war, the specific formal prohibition of secret treaties was not a primary provision of the document itself.