World War II is one of the most recognized battles in world history. The battle originated with Germany's invasion of Poland. This sparked the start of the war, although the United States was not yet involved. The United States entered the scene after the attack on Pearl Harbor on the morning of December 7, 1941. Although Japan was the most direct adversary, the United States Army Rangers, Marine Corps and all other branches of the military faced Japan. and in Germany. Fighting on the Front Lines One of the most famous battles of the war was the invasion of Normandy, France, by Allied forces, also known as "Operation Overlord." The arriving troops disembarked under heavy fire which destroyed many of the soldiers arriving by sea before they reached the beach. They encountered heavy fire from soldiers using .50-caliber heavy machine guns. Once the soldiers reached the coast, the battle was in full swing. Fight with the Japanese As the battle continued in France with Germany, the Japanese attempted to gain points of view against the American soldiers. Heavy fire from the Nambu Type 100 machine gun hit the American infantry. This weapon was very difficult to handle, because the magazine (also used as a foregrip) was located on the left side of the muzzle. This cannon was the close combat weapon of choice for the Imperial Japanese Army. Different fronts, different weapons, same resistance Among the Type 100 was a vast arsenal of Japanese weapons. Among these was the Type 99 light machine gun. Off the tripod, this weapon was very hard and difficult to handle. The sights were located on the left side of the weapon, and unlike almost every other weapon of the time, the magazine was located in the middle of the paper. The panels were still homemade. effective. American soldiers, meanwhile, had a little help from Germany in designing the mines they used. The S-Mine 35 was popular for its detonation sequence. This was a pressure-activated proximity mine that would propel a small grenade-like object about 3 feet off the ground to detonate. This characteristic earned them the nickname “Bouncing Betty”. The Last Explosion Of all the weapons fired during World War II, one was loud enough for an entire country to hear: the atomic bomb. During initial testing, it was also called the "Manhattan Project" and kept in extreme secrecy, above the Top-Secret level. The United States developed it in collaboration with Canada and the United Kingdom. The image shown here is the replica of the bomb dropped on Hiroshima, Japan, on August 6, 1945. The explosion sent a mushroom cloud more than 18 kilometers into the sky..