The was a corps

Corps

A corps is either a large formation, or an administrative grouping of troops within an armed force with a common function such as Artillery or Signals representing an arm of service...

-level ad hoc Japanese army in the Second Sino-Japanese War

Second Sino-Japanese War

The Second Sino-Japanese War was a military conflict fought primarily between the Republic of China and the Empire of Japan. From 1937 to 1941, China fought Japan with some economic help from Germany , the Soviet Union and the United States...

.

The Shanghai Expeditionary Army was first raised on February 25, 1932 as a reinforcement for Japanese forces involved during the First Battle of Shanghai

January 28 Incident

The January 28 Incident was a short war between the armies of the Republic of China and the Empire of Japan, before official hostilities of the Second Sino-Japanese War commenced in 1937.- Naming :...

. It was dissolved in June 1932, after the conclusion of that incident.

The Shanghai Expeditionary Army was raised a second time on August 15, 1937 on the eruption of full scale hostilities between the Empire of Japan

Empire of Japan

The Empire of Japan is the name of the state of Japan that existed from the Meiji Restoration on 3 January 1868 to the enactment of the post-World War II Constitution of...

 and the Republic of China

Republic of China

The Republic of China , commonly known as Taiwan , is a unitary sovereign state located in East Asia. Originally based in mainland China, the Republic of China currently governs the island of Taiwan , which forms over 99% of its current territory, as well as Penghu, Kinmen, Matsu and other minor...

. Its forces participated in the Second Battle of Shanghai

Battle of Shanghai

The Battle of Shanghai, known in Chinese as Battle of Songhu, was the first of the twenty-two major engagements fought between the National Revolutionary Army of the Republic of China and the Imperial Japanese Army of the Empire of Japan during the Second Sino-Japanese War...

, and the subsequent drive inland to the Battle of Nanking. Troops from this army were also involved in the subsequent Nanjing Massacre.

The Shanghai Expeditionary Army was disbanded on February 1, 1938, and its component units were incorporated into the Japanese Central China Area Army

Japanese Central China Area Army

The was a field army of the Imperial Japanese Army during the Second Sino-Japanese War.-History:On November 7, 1937 Japanese Central China Area Army was organized as a reinforcement expeditionary army by combining the Shanghai Expeditionary Army and the IJA Tenth Army...

.

Commanding officer

	Name	From	To
1	General Yoshinori Shirakawa	25 February 1932	29 April 1932
X	Disbanded
2	General Iwane Matsui Iwane Matsui was a general in the Imperial Japanese Army and the commander of the expeditionary forces sent to China in World War II. He was convicted of war crimes and sentenced to death by hanging by the International Military Tribunal for the Far East for responsibility over the Nanking Massacre.-Early life...	15 August 1937	2 December 1937
3	Lieutenant General Prince Asaka Yasuhiko	2 December 1937	14 February 1938

Chief of Staff

	Name	From	To
1	Lieutenant General Kanichiro Tashiro Kanichiro Tashiro - Notes :...	25 February 1932	29 April 1932
X	Disbanded
2	Lieutenant General Mamoru Iinuma	15 August 1937	14 February 1938