This is a list of Japanese political and military incidents, as classified by Japanese terminology in which incident was a euphemism

Euphemism

A euphemism is the substitution of a mild, inoffensive, relatively uncontroversial phrase for another more frank expression that might offend or otherwise suggest something unpleasant to the audience...

 applied during the 1920s and through to the outbreak of the Pacific War

Pacific War

The Pacific War, also sometimes called the Asia-Pacific War refers broadly to the parts of World War II that took place in the Pacific Ocean, its islands, and in East Asia, then called the Far East...

.

Political incidents

What the Japanese terminology euphemistically describes as incidents were the attempts at coup d'etat

Coup d'état

A coup d'état state, literally: strike/blow of state)—also known as a coup, putsch, and overthrow—is the sudden, extrajudicial deposition of a government, usually by a small group of the existing state establishment—typically the military—to replace the deposed government with another body; either...

of the period.

• Amakasu Incident
  Amakasu Incident
  The Amakasu Incident occurred on September 16, 1923, in the chaos immediately following the Great Kantō earthquake, in Japan. Fearing that anarchists would take advantage of the disaster to overthrow the government, a squad of military police led by Lieutenant Masahiko Amakasu arrested Sakae Osugi,...
  
   (1923)
• March incident
  March Incident
  The ' was an abortive coup d'état attempt in Japan, in March 1931, launched by the radical Sakurakai secret society within the Imperial Japanese Army, aided by civilian ultranationalist groups.-Background and History:...
  
   (1931)
• Imperial Colors Incident
  Imperial Colors Incident
  The , also known as the , was an abortive coup d'état attempt in Japan, on 21 October 1931, launched by the Sakurakai secret society within the Imperial Japanese Army, aided by civilian ultranationalist groups.-Background and History:...
  
   (1931)
• May 15 Incident
  May 15 Incident
  The ' was an attempted coup d'état in Japan, on May 15, 1932, launched by radical elements of the Imperial Japanese Navy, aided by cadets in the Imperial Japanese Army and civilian remnants of the League of Blood Incident. Prime Minister Inukai Tsuyoshi was assassinated by 11 young naval officers...
  
   (1932)
• League of Blood Incident
  League of Blood Incident
  was a 1932 assassination plot in Japan in which extremists targeted wealthy businessmen and liberal politicians. The group chose twenty victims but succeeded in killing only two: former Finance Minister and head of the Rikken Minseito, Junnosuke Inoue, and Director-General of Mitsui Holding...
  
   (1932)
• Military Academy Incident
  Military Academy Incident
  The ', also known as the ' was an attempted coup d'état that took place in Japan in November 1934. It was one of a sequence of similar conspiracies for a 'Shōwa Restoration' led by radical elements with the Imperial Japanese Army.-Background and History:...
  
   (1934)
• Aizawa Incident (1935)
• February 26 Incident
  February 26 Incident
  The was an attempted coup d'état in Japan, from February 26 to 29, 1936 carried out by 1,483 troops of the Imperial Japanese Army. Several leading politicians were killed and the center of Tokyo was briefly occupied by the rebelling troops...
  
   (1936)
• Kyūjō Incident
  Kyujo Incident
  The ' was an attempted military coup d'état in Japan at the end of the Second World War. It happened on the night of 14 August 1945 – 15 August 1945, just prior to announcement of Japan's surrender to the Allies...
  
   (8-15 Incident) (1945)

Military Incidents

These include minor battles as well as major invasions and war crimes.

• Port Arthur massacre (China) (1894)
• Shantung Incident (1927)
• Huanggutun Incident
  Huanggutun Incident
  Huanggutun Incident was an assassination plotted by the Japanese Kwantung Army that targeted Fengtian warlord Zhang Zuolin. It took place on June 4, 1928 at Huanggutun rail station near Shenyang in which Zhang's train was destroyed by an explosion...
  
  (June 4, 1928)
• East Chinese Railway Incident (1929)
• Manchouli Incident, as Japanese name for Russian incursion to Manchouli in response for East Chinese Railway Incident
• Jinan Incident
  Jinan Incident
  The Jinan Incident or May 3rd Tragedy , was an armed conflict between the Japanese Army allied with Northern Chinese warlords against the Kuomintang's southern army in Jinan, the capital of Shandong in 1928 during the Kuomintang's Northern Expedition.-Background:During the Northern Expedition,...
  
   (1929)
• Wushe Incident
  Wushe Incident
  The Wushe Incident or Wushe Event or Wushe Revolution / Rebellion / Uprising / Insurrection of 1930 was the last major uprising against colonial Japanese forces in Taiwan...
  
   biggest and the last rebellion against Japanese colonial forces in Taiwan (1930)
• Wanpaoshan Incident
  Wanpaoshan Incident
  The was a minor dispute between Chinese and Korean farmers which occurred on 1 July 1931, prior to the Mukden Incident. Although the issue was trivial, it was highly sensationalized in the Japanese and Korean press, and used with considerable propaganda effect to increase anti-Chinese sentiment in...
  
   Japanese aggressive incursion in Wanpaoshan (July 1931)
• Nakamura Incident
  Nakamura Incident
  The refers to the extrajudicial killing of Imperial Japanese Army Captain Shintarō Nakamura and three others, on 27 June 1931 by Chinese soldiers in Manchuria.-Background:...
  
  (July 1931)
• Mukden Incident
  Mukden Incident
  The Mukden Incident, also known as the Manchurian Incident, was a staged event that was engineered by Japanese military personnel as a pretext for invading the northern part of China known as Manchuria in 1931....
  
  , also called Manchurian Incident, Liutiaoukou Incident or 9.18 Incident (1931), a staged sabotage of a South Manchuria Railway
  South Manchuria Railway
  The , and operated within China in the Japanese-controlled South Manchuria Railway Zone. The railway itself ran from Lüshun Port at the southern tip of the Liaodong Peninsula to Harbin, where it connected to the Chinese Eastern Railway.-History:...
  
   track.
• Tientsin Incident(1931) Riot in Tientsin fomented by Col. Kenji Doihara
  Kenji Doihara
  was a general in the Imperial Japanese Army in World War II. He was instrumental in the Japanese invasion of Manchuria for which he earned fame taking the nickname 'Lawrence of Manchuria', a reference to the Lawrence of Arabia....
  
    to provide cover for the removal of Puyi
  Puyi
  Puyi , of the Manchu Aisin Gioro clan, was the last Emperor of China, and the twelfth and final ruler of the Qing Dynasty. He ruled as the Xuantong Emperor from 1908 until his abdication on 12 February 1912. From 1 to 12 July 1917 he was briefly restored to the throne as a nominal emperor by the...
  
   to Manchuria (Nov. 1931)
• Shanghai Incident, the first attempt to invade Shanghai metropolitan sector (1932)
• North Chahar Incident
  North Chahar Incident
  The North Chahar Incident between Japan and China in June 1935, resulted in an agreement that demilitarized Chahar province.In June 1935, four Japanese soldiers entered the Changpei District of Chahar province, north of the Great Wall, on a journey to Kalgan and Peiping. They were detained because...
  
  (1935)
• Suiyuan Incident
  Suiyuan Campaign (1936)
  The Suiyuan Campaign was an engagement between the National Revolutionary Army of the Republic of China and the Japanese-trained Inner Mongolian/Grand Han Righteous Armies before the outbreak of official hostilities during the Second Sino-Japanese War....
  
  (1936) Talk:List of Japanese political and military incidents
• Lukouchiao Incident or China Incident, usually known as Marco Polo Bridge Incident
  Marco Polo Bridge Incident
  The Marco Polo Bridge Incident was a battle between the Republic of China's National Revolutionary Army and the Imperial Japanese Army, often used as the marker for the start of the Second Sino-Japanese War .The eleven-arch granite bridge, Lugouqiao, is an architecturally significant structure,...
  
   (7 July 1937)
• Langfang Incident
  Langfang Incident
  The Langfang Incident was a military incident of the Second Sino-Japanese War that occurred on July 26, 1937 in Langfang, a town en route from Beijing to Tianjin. The Japanese dispatched troops there as part of an organised attack on the 29th Army....
  
   (1937)
• Kuanganmen Incident (1937)
• Tongzhou Incident (1937)
• Panay incident
  Panay incident
  The USS Panay Incident was a Japanese attack on the American gunboat while she was anchored in the Yangtze River outside Nanking , China on December 12, 1937. Japan and the United States were not at war at the time. The Japanese claimed that they did not see the American flags painted on the deck...
  
   Japanese air attack against American
  United States
  The United States of America is a federal constitutional republic comprising fifty states and a federal district...
  
   river patrol boat in Yang-Tze Kiang river (1937) also involving a British
  United Kingdom
  The United Kingdom of Great Britain and Northern IrelandIn the United Kingdom and Dependencies, other languages have been officially recognised as legitimate autochthonous languages under the European Charter for Regional or Minority Languages...
  
   river patrol boat. (12 December, 1937)
• Changkufeng Incident, also called Battle of Lake Khasan (July - August, 1938)
• Kweilin Incident,CNAC Chinese airline plane shotdown by Japanese fighters over Pearl river,was the first aggression against civil aircraft in history(1938)
• Tientsin Incident
  Tientsin Incident
  was an international incident created by a blockade by the Imperial Japanese Army's Japanese Northern China Area Army of the British settlements in the north China treaty port of Tianjin in June 1939...
  
  , xenophobic Japanese aggression towards British subjects in Tientsin (1939)Talk:List of Japanese political and military incidents
• Battle of Halhin Gol, also known as Nomonhan Incident (May - September, 1939)
• Tutuila Incident
  USS Tutuila (PR-4)
  USS Tutuila was a gunboat in the service of the United States Navy from 1928 until her transfer to China under lend-lease in 1942.-Construction:...
  
  , similar Japanese air strike against an American river patrol boat in Chungking, (31 July 1941)