• Civil wars in Japan (3 C, 18 P)
• Invasions by Japan (7 C, 32 P)
• Invasions of Japan (6 P)
• Rebellions in Japan (6 C, 35 P)

-

• Wars involving Manchukuo (1 C, 4 P)

B

• Boshin War (4 C, 34 P)
• Boxer Rebellion (6 C, 44 P)

C

• Sino-Japanese Wars (2 C, 4 P)

F

• First Sino-Japanese War (3 C, 6 P)

I

• Imjin War (4 C, 13 P)
• Japanese invasion of Taiwan (1895) (10 P)

R

• Japanese involvement in the Russian Civil War (2 C, 14 P)
• Russo-Japanese War (6 C, 27 P)

S

• Second Sino-Japanese War (9 C, 51 P)
• Soviet–Japanese border conflicts (1 C, 6 P)

W

• Japan in World War I (5 C, 12 P)
• Japan in World War II (13 C, 45 P)

*

• List of wars involving Japan

B

• Battle of Ōshū
• Boshin War
• Boxer Rebellion

F

• First Chōshū expedition
• First Sino-Japanese War

G

• Genpei War
• Silla–Goguryeo and Paekche–Kaya–Wa War
• Gosannen War

I

• Indonesian National Revolution
• Japanese invasion of Taiwan (1895)
• Iraq War

J

• Japan during World War II
• Japanese invasion of Taiwan (1616)
• Jinshin War
• Jōkyū War

K

• Kannō disturbance
• Koshamain's War
• Kublai Khan's campaigns
• Kyōtoku incident

L

• List of high-ranking commanders of the Indonesian National Revolution

M

• Mongol invasions of Japan
• Mongolia in World War II
• Mudan incident

O

• Ōei Invasion

R

• Russo-Japanese War

S

• Second Chōshū expedition
• Second Sino-Japanese War
• Soviet–Japanese border conflicts
• Soviet–Japanese War

T

• Japanese invasion of Taiwan (1874)
• Toi invasion

V

• War in southern Vietnam (1945–1946)

W

• World War I
• Japan during World War I
• World War II

Y

• Yūki War