Kim exiled himself to Shanghai, China in 1919 after a nationwide non-violent resistance movement, known as the March 1st Movement, which was violently suppressed by the Japanese imperialist government.
In Shanghai, Kim joined the Provisional Government of the Republic of Korea, which vowed to liberate Korea from Japanese occupation.

After serving as the Police Minister, Kim became the president of the Provisional Government of the Republic of Korea in 1927.
He was re-elected to the office many times by the Provisional Assembly.

In 1931 he organized a nationalist group, the Korean Patriotic Corps.
One of the members, Yun Bong-gil, ambushed and assassinated the Japanese military leadership in Shanghai on April 29, 1932.
The commander of the Japanese Army and Navy died instantly.
Another member, Lee Bong-chang, tried to assassinate the Japanese emperor Hirohito in Tokyo on January 8 of the same year but failed.

After escaping to Chongqing where Chiang Kai-shek's Nationalist Government was established, Kim established the Korean Liberation Army, commanded by General Ji Cheong-cheon.
When the Pacific War broke out on December 8, 1941, Kim Koo declared war on Japan and Germany and committed the Korean Liberation Army to the Allied side; the Korean Liberation Army took part in warfare in China and Southeast Asia.
Kim arranged for the Korean Liberation Army to advance to Korea in 1945 but, days before the departure of the leading unit, the war ended.
Kim exiled himself to Shanghai, China in 1919 after a nationwide non-violent resistance movement, known as the March 1st Movement, which was violently suppressed by the Japanese imperialist government. In Shanghai, Kim joined the Provisional Government of the Republic of Korea, which vowed to liberate Korea from Japanese occupation.
After serving as the Police Minister, Kim became the president of the Provisional Government of the Republic of Korea in 1927. He was re-elected to the office many times by the Provisional Assembly.
In 1931 he organized a nationalist group, the Korean Patriotic Corps. One of the members, Yun Bong-gil, ambushed and assassinated the Japanese military leadership in Shanghai on April 29, 1932. The commander of the Japanese Army and Navy died instantly. Another member, Lee Bong-chang, tried to assassinate the Japanese emperor Hirohito in Tokyo on January 8 of the same year but failed.
After escaping to Chongqing where Chiang Kai-shek's Nationalist Government was established, Kim established the Korean Liberation Army, commanded by General Ji Cheong-cheon. When the Pacific War broke out on December 8, 1941, Kim Koo declared war on Japan and Germany and committed the Korean Liberation Army to the Allied side; the Korean Liberation Army took part in warfare in China and Southeast Asia. Kim arranged for the Korean Liberation Army to advance to Korea in 1945 but, days before the departure of the leading unit, the war ended.
Kim Gu