Why The Us Dropped Nagasaki

Many important battles, inventions, and decisions affected the outcome of World War Two. The two atomic bombs dropped on Hiroshima and Nagasaki by the U.S. were arguably the single most influential move made on the war. While many people believe that the bombs were dropped solely to avoid an invasion, multiple other factors caused the atomic bombs to be dropped. The U.S. dropped the atomic bomb on Nagasaki because of the Potsdam Declaration, the fear of Russia spreading communism, and the weather conditions of August 9th.
On September of 1939, Germany, along with leader Adolf Hitler, defied the Treaty of Versailles, which concluded World War I, and invaded Poland. This caused Britain and France to declare war on Germany. In April of 1940,
The B-29 Superfortress, which carried the bomb, Fat Man, was named Bockscar, and it was flown by Charles Sweeney. Little Boy, dropped on Hiroshima, was more of a narrow cylinder, while the Nagasaki bomb, Fat Man, was a big egg shaped bomb. Fat man was five feet around, eleven feet long, and was painted a dark yellow color. Attached to the back, was a tail fin shaped like a big boxy fan called the California parachute. It was designed to keep the bomb from spinning out of control after being released. The team who assembled the bomb signed their names on the shell, and wrote messages to the Japanese like "Here's to you!" Others wrote "A second kiss for Hirohito." The plane sped through dark and stormy morning weather until it was above a tiny island called Yakushima. There, it was supposed to wait for its entourage of two B-29s, called the Great Artiste, which was equipped with gear to measure the power of the bomb, and Big Stink, a plane used to video the bomb, but Big Stink never arrived. After waiting for Big Stink for nearly an hour, Bockscar and the Great Artiste left for their target city, Kokura. Kokura had a population that was about half the size of Hiroshima's, but it was home to "one of the largest arsenals in Japan." Upon Bockscar's 10:45 a.m. arrival over Kokura, the team saw that the arsenal was "obscured by heavy ground haze and smoke," as written in the weaponeer's flight journal
They chose targets based on visibility of the city from the air, estimated weather conditions, Japanese military locations in the cities that could be wiped out, and how the city's bombing would affect the morale of the Japanese (“Bombings”). They also wanted to target cities with large amounts of unsturdy, closely built houses and buildings. Also, the city had to be densely populated all through the one mile radius of the bomb. They also wanted to take out a place that would hurt the Japanese military like a steel factory that makes weapons for them. Lastly, and importantly, the primary target needed to be undamaged by previous bombings, so the Americans could completely determine the effect of the atomic bomb (“Bombings”). Scientists believed that June was the worst month for visual bombings. They believed that the weather would improve a little bit in July and August, but then decline in September. Therefore, the bombing would need to happen during July or August. They also executed extreme preparations to get accurate weather estimates. Nagasaki was considered, because of its military value to the Japanese. It was one of Japan's largest sea ports in the south, and was very useful to Japan's fearsome Navy because it produced ships, equipment, and other materials