Although nothing could be further from the truth. Wars are expensive. The cost of World War II is estimated to be around US$1.944 trillion worldwide. Major wars create a shock to the economy of the participating countries. Although it can have positive effects in the short term, in the long term, war generally hinders economic development and undermines prosperity. Even when the war is over, it leaves behind serious repercussions that people must deal with. Veterans need psychological and physical care due to the consequences 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 proper psychological care is not provided to them. Civilians must deal with the devastating consequences of war, which include destruction and damage to infrastructure. During World War I, the United States dropped the atomic bomb on Hiroshima and Nagasaki in Japan, which killed between 90,000 and 166,000 people in Hiroshima and between 60,000 and 80,000 others. in Nagasaki. These include people who died from the force and excruciating heat of the explosion, as well as deaths caused by acute radiation poisoning. This radiation exposure has also caused cancer and other radiation-related illnesses such as leukemia. Children born to survivors were often reported to have small head size and mental disabilities, as well as physical growth.