World War II

 World War II , also called  Second World War ,  conflict that involved virtually every part of the world during the years 1939–45. The principal belligerents were the Axis powers—Germany,  Italy, and Japan—and the Allies—France, Great Britain, the  United States, the Soviet Union, and, to a lesser extent,  China. The  war was in many respects a continuation, after an uneasy 20-year hiatus, of the disputes left unsettled by  World War I.

(សង្គ្រាមលោកលើកទី២ ចាប់ផ្ដើមពី ឆ្នាំ ១៩៣៩ ដល់ ១៩៤៥)

The start of the war is usually said to be the Invasion of Poland on September 1, 1939, but some sources count the Japanese invasion of China on July 7, 1937, as the start. The United States reacted to the Japanese invasion of China by placing an embargo on Japan. France, United Kingdom , and most of their colonies reacted to the German invasion of Poland by declaring war on Germany. Germany expanded its territory greatly in Europe. By 1941, most of Europe was under German control, while only Britain remained fighting against the Axis in North Africa, Mediterranean, and the Atlantic. In June 1941, the Axis Powers invaded the Soviet Union, starting the largest theatre of war in history. This would harm the Axis military power greatly. In December 1941, Japan attacked Western colonies in the Pacific. (អ្នកខ្លះ យល់ថា សង្រាមលោកលើកទី ២ កើតឡើងក្នុងអំឡុងនៃការ ឈ្លានពាន របស់ប៉ូឡូញ។ តែ ខ្លះទៀត យល់ថា កើតឡើងដោយការ ឈ្លានពាន របស់ ជប៉ុន លើ ប្រទេសចិន)