The United States were involved in the conflict through aiding their support to Batista. They believed that Castro’s revolution in nearby Cuba brought the Cold War to its own hemisphere. This struck a bit of tension to the US economy since they own many parts of Cuban territory as their source of wealth. They were disillusioned with Batista’s leadership and provided $10 million in military assistance to the Cuban government in the eight years prior to the revolution. While it’s unknown what struck the bitterness between Castro and the American government, he turned to the Soviet Union for assistance. Although the Soviet response was initially hesitant, the USSR accepted reluctantly. 

Through Castro’s determination, he decided to plan his next revolution by acquiring an army to declare war against Batista. Equipment from the Soviet Union soon poured into the island nation with deliveries including MIG jet fighters, helicopters, tanks, rocket launchers, and various assault and heavy machine guns.  Castro was able to eventually overthrow Batista’s government and by July 1960, the relationship was well established as Castro took over as leader of Cuba. He declared himself a Marxist-Leninist in December 1961 as he used Marxism’s philosophy in creating a new government for Cuba. Many Cubans also reacted negatively as a steady stream of officials from the deposed Batista regime, along with other professionals and technicians that opposed the revolution, fled the country. 

The United States passed through the predictable phases of disenchantment with Castro and finally schemed against him under the operation that was carried out by President Kennedy in April 1961 with invasion forces landing in the area of Cuba, known as the Bay of Pigs. They underestimated how much the revolution caused a toll on the local population. This led to the incursion failing within three days. Castro’s army and militia that had killed, captured, or thrown off the entire landing force led the invasion to a total disaster.  The Soviets began to send out missiles and personnel into Cuba that could strike the United States at any time given but got later on removed to prevent another war to rise.

Later that year, there were attempts made to negotiate as a unified country as they decided that they would be reunited and made independent after a five-year period. This was later shortened as elections in North and South Korea were held in 1948 with North Korea forming a communist government with Kim Il-sung as the leader, and South Korea forming a democratic government. On June 26th, 1950 conflicts around the border arose as North Korea invaded the south. Immediately condemning the North Korean invasion, The South Korean Army fled and forces from the United Nations came to help out with military assistance as President Harry Truman ordered American forces to the peninsula under the UN banner. Soon the South Korean government only occupied a small part of Korea on the southern tip around the port of Pusan. 

While fighting occurred around Pusan, UN commander General Douglas MacArthur led the UN forces on an attack at the Battle of Inchon on September 15th. The battle was a success as they advanced deep into North Korea hoping to end the war by Christmas despite Chinese warnings about intervening. MacArthur continued to follow his aggressive tactics and pushed the North Koreans to the northern border. This caused great upheaval for the Chinese, so in October Chinese forces sent their army for combat. MacArthur was able to stabilize the line and counterattacked in February as they were forced to retreat to the south of Seoul. Due to the conditions they were currently in, President Truman replaced MacArthur with General Matthew Ridgway and repelled a Chinese offensive before halting just north of the border.

War effectively became a stalemate as negotiations opened in July 1951. Although a peace treaty wasn’t established, both sides agreed to the creation of a demilitarized zone along the front and would remain independent and the border would remain at the 38th parallel. In the end,  South Korea developed into one of the world's strongest economies while North Korea remained an isolated pariah state.

Eventually, Ho Chi Minh and his allies tried to fight against the French while trying to gain assistance from the United States. However, the United States was dedicated to its Cold War foreign policy through the fear of communism spreading. This “fear” was backed up through the “domino theory” that if a singular country fell under the ideology of communism, then surrounding countries would fall apart. In 1950, the U.S. decided to help France defeat Ho Chi Minh and his revolutionaries by sending the French military aid but soon led to a major failure. As the French lost the battle to the Vietnamese, they pulled out of Vietnam.  At the Geneva Conference of 1954, nations met to determine how the French could peacefully withdraw through an agreement that split the country into communist North Vietnam and non-communist South Vietnam. It was announced that a democratic election would be held to reunite the country under one government. This struck a bit of tension in the United States as they feared that the country would become communist so they helped Ngo Dinh Diem get elected in the South by eliminating his rivals; he was later on killed in 1963 due to his poor leadership skills. 

As President Johnson got involved in the mix, he came up with a plan to help bolster South Vietnam’s defenses instead of the US winning the war for them. Troops were limited and disappointed when the U.S. found themselves in a stalemate with the North Vietnamese and the Viet Cong. Though fighting was limited, it made it difficult for a serious ground assault when having to encounter ambushes and traps in the Jungles of Vietnam. Many suffered as a result of the war through low morale, anger, and drug usage. In 1969, Richard Nixon became the new U.S. president. He had his own plan to end U.S. involvement in Vietnam by declaring U.S. troops to be removed from Vietnam while handing back the fighting to the South Vietnamese. The withdrawal of U.S. troops began in July 1969 that brought a  faster end to hostilities. On January 27, 1973, the peace talks in Paris finally succeeded in producing a cease-fire agreement. The last U.S. troops left Vietnam on March 29, 1973, knowing they were leaving a weak South Vietnam that would not be able to withstand another major communist North Vietnam attack.   The US had lost the Vietnam War and also taken a major effect on the Cold War as Vietnam was reunited as a communist country. 

Before the dilemma, there was originally a conflict between the United States and Fidel Castro in Cuba. As the US tried to overthrow and invade Castro, their attempt failed miserably. This struck tension toward Castro so his allies, the Soviet Union, set up missile sites within Cuba that could strike the US. 

When the United States found out about the missile launch sites being built in September 1962, President John F. Kennedy complained to the Soviet Union about these developments and warned them that the United States would not accept offensive weapons in Cuba; this put him in a very difficult situation as Cuba finally installed weapons that could take down the US's. 

To prevent any issues from occurring in John F. During Kennedy's presidential campaign, he decided to restrict the flights of the U-2 planes over Cuba while Pilots were told to avoid flying the whole length of the island. Kennedy hoped this would ensure that a U-2 plane would not be shot down, and would prevent Cuba from becoming a major issue. When he heard that Cuba had new nuclear weapons, he decided to call a meeting on what should be done to deal with the crisis. 

Although all agreed on an air attack on the missile sites, John F. Kennedy decided to wait and instead called for another meeting to take place that evening to prevent an issue similar to the Bay of Pigs invasion from reoccurring. This caused doubt to be unleashed, fearing that it would lead to a nuclear war with the Soviet Union. Soon it was imposed for a Naval Blockade on Cuba to prevent offensive weapons from entering Cuba, as well as alerting the navy to prepare for attacks on Cuba and the Soviet Union. 

On October 24, President John F. Kennedy was informed that Soviet ships had stopped before they reached the United States ships blockading Cuba. Nikita Khrushchev sent a note to Kennedy accusing him of creating a crisis to help the Democratic Party win the forthcoming election. He, later on, sent another letter declaring to the US to remove their bases and that they would make a negotiation if the US decides to not invade Cuba which Kennedy accepted. The crisis was President Kennedy's greatest moment in aiding him in the election and the conflict soon was over marking a change in the development of the cold war. 

When people began to realize that they didn’t want to live under the rule of the Soviet Union, they tried to escape the eastern part of the country and moved to the West. As they tried to seek a better life, this threatened the Communist state's very existence. On Aug. 12, 1961, East German constructed concrete-block, wood barriers, and barbed wire fences around Berlin to prevent people from leaving and losing too many people. The Wall soon became the Cold War's most potent symbol. Its existence made it extremely difficult for people to escape through its alarmed fences, dog-run patrols, and manned guards that were ordered to shoot on sight. While some were still able to escape through their athletic ability and by digging tunnels, thousands were killed, imprisoned, and arrested as a result of the wall. As East Germany believed that they were still under stabilization, it soon suffered from a shortage of natural resources and was desperately inefficient. East Germans had enough of the results of the wall and declared a protest and huge rallies demanding freedom to travel while stating, "We are the People!"

The East German state, demoralized and bankrupt, decided to announce some relaxation of the decades-old travel restrictions, hoping to calm the situation. However, they were wrong, and immediately the borders were open and people could freely move between Eastern and Western Germany. Much of the wall was torn down by thousands of East Berliners as they celebrated the end of a divided Germany. Once Berlin was reunited, the Cold War had come to an end.

Democracy and communism were the two political ideologies that Stark differenced. He also had a desire for power preservations. It made both countries more concerned with self protection and promotion, than with shared collaboration. The United States used its power to try to protect existing democratic governments around the world. The Soviet Union, used its influence that it gained through the war and established and enforced communist rule and created an alliance of countries on its eastern borders that stood as a buffer between the Western world and itself. The Soviet Army under the leadership of Joseph Stalin. Stalin occupied Bulgaria, Romania, Hungary, Poland, portions of Czechoslovakia and Eastern Germany. Other countries such as China, Yugoslavia, and Albania also adopted Communist governments in the 1940s, but with the Soviet Union China broke off. The Soviet Union wanted to hold on to these countries that they had already taken. The Soviet Union wanted to maintain the buffer zone as insurance against any future aggression from Germany and to uphold its military and political power in the region. It was a constant back and forth that the Eastern Bloc would break away from the Soviet Union and then brought back because of internal pressure,

martial law or, as a last resort, military invasion. Eventually, when Mikhail Gorbachev (1931– ) assumed power in 1985, his policies of openness and economic restructuring allowed the countries of the Eastern Bloc to adopt reforms and eventually to establish non-Communist governments. In 1989, the Eastern Bloc was considered to have finally and completely dissolved

Airlift- Stalin decided to not risk war by shooting a plane down. They began a massive airlift of food, coal, and other supplies between the Western German zones and Berlin. Worried that the airlift might fail, Allied ambassadors met with Stalin to discuss the situation. He demanded that the ostmark replace the Deutschmark in Berlin and that the future of Germany is discussed. Feeling that the blockade would force the allies back to negotiate, the Soviets didn’t budge. The UN also tried meditating. Ultimately the Allies didn’t need to negotiate any further because the Berlin Airlift developed into a hugely successful operation, by January moving an average daily tonnage of 5620 and 8000 tons by April. The airlift was unprecedented. The Allies also shut all exports from Germany into the Soviet zone, placing economic pressure back on the USSR. Stalin, facing defeat, changed position, saying he’d lift the blockade if a Council of Foreign Ministers, which had met before to discuss the postwar world, was held. The Allies agreed and the Blockade was lifted on May 12 1949. T,h e Berlin Blockade was the first time these former allies had been in open conflict. The Berlin Blockade has been described as "an astonishing display of the West’s industrial weight and political determination."

Japanese, and were largely exhausted by the effort.  The Communist wanted to save their strength so they did not attempt to banish the Japanese from China. The Communists suffered defeats and setbacks in 1946 and 1947, but learned from their errors and by 1948 had turned the tables on the KMT, defeating them in battle and capturing large amounts of demoralized troops and their equipment. The People's Republic of China became a reality in October 1949. Chian Kai-Shek retreated with the remainder of his army and roughly two million refugees to Taiwan, and subsequently repelled from outlying islands at the Battle of Kuningtou, but the Communists captured Hainan Island in 1950. With the capture of Hainan, the lines ossified and the Chinese Communist Revolution ended. Communist victory in the world's most populous country also fanned the anti-communist hysteria of 1950s America. The most important long-term effect was to create a Communist state with the size and power to stand as a rival to the Soviet Union within the Communist world. The Soviets and Chinese were initially allies, but eventually split apart, and fought bloody border conflicts in the 1960s. The Sino-Soviet split forced many Communist states to choose sides, with China even invading pro-Soviet Vietnam in 1979.