When Did the Pacific War Officially Start According to Most Historians?

💡 The Answer

• The Pacific War is widely accepted to have begun in 1941.
• This is when the United States and United Kingdom entered the war.
• However, war between Japan and China had started in 1937.
• Hostilities date back even further to Japan's invasion of Manchuria in 1931.
• So the official start is later than initial conflicts.