However, nothing can be further from the truth. Wars are expensive. The cost of World War II is estimated at approximately US$1.944 trillion worldwide. Major wars create a shock to the economies of participating countries. While there may be some positive short-term effects, in the long run war generally disrupts economic development and undermines prosperity. Even when the war is over, it leaves behind some serious repercussions that people have to deal with. War veterans require both psychological and physical care due to the impact of war. Soldiers and civilians who have experienced war have often witnessed terrible things, which can leave deep emotional scars. Most of them develop psychological problems if adequate psychological care is not provided. Civilians face the devastating effects of war, which include destruction and damage to infrastructure. During World War I, America dropped the atomic bomb on Hiroshima and Nagasaki in Japan, which killed 90,000 to 166,000 people in Hiroshima and another 60,000 to 80,000 in Nagasaki. These include those who died from the force and searing heat of the explosion and also death from acute radiation poisoning. This radiation exposure has also caused cancer and other radiation-related diseases such as leukemia. Children born to survivors are often said to have reduced head size and mental disability, as well as their physical growth