After WWI, the world confronted with the military conflicts which led to Second World War (WWII). During WWII, a plenty of powerful military weapons were invented and used. Comparing to WWI, the military weapon and technology used in WWII could be more efficient and powerful. Due to this reason, the military invention of WWII was recognized as the destroyer of the world. It is not surprising that a million of victims and soldiers died and severely injured in the wartime. One of the advancement in military weapon was tanks. Like WWI, tanks played a key role in the battle of Second World War. Tanks used in WWII seemed to have massive improvement in increased speed, armor and firepower. The amphibious DUKW was the critical development for troop deployment. Aircraft was another example for technological breakthrough employed in the Second World War. Aircraft could be recognized as tactical and strategic operations. Aircraft developed in WWII had a higher standard with powerful bombers and fast fighters.
These enabled the military forces to undertake a various missions in many areas. Furthermore, the bomb and nuclear weapons were widely used in WWII. It cannot be denied that bomb has high competency to destroy everything within a minute. The nuclear bomb was widely used in WWII to kill the enemies. For example, Hiroshima and Nagasaki were attached by the nuclear bomb which led to the end of Second World War and destruction of humankind. This was the frightening truth of scientific and technological breakthrough in the military history. The last technology appearing in the WWII was radar. Radar allowed the military to track incoming warplanes of the enemies and detect abnormal objects at a distance.