Imperial Japanese Navy (Japanese ; 大日本帝国海軍, Dai-Nippon Teikoku Kaigun), also known as IJN, was the navy of the Empire of Japan from 1869 until 1947.
The IJN was created in 1868 by the Meiji Restoration. It won against larger navies in the First Sino-Japanese War (1894-1895) and Russo-Japanese War (1904-1905) World War 1 (1914-1918) Second Sino-Japanese War (1937-1945) World War 2 (1941-1945) and was dissolved.
Article 9 of the Constitution of Japan prohibits the use of aggressive force as a means for settling international disputes.
In order to defend Japan, if necessary, the Japan Self-Defense Forces (JSDF) was formed.
The ocean-reach of JSDF is the Japan Maritime Self-Defense Force (JMSDF).