The following is the order of battle of the forces involved in the Battle of Shanghai, during the opening stages of the Second Sino-Japanese War.
Order of battle prior to August 13, 1937
China
National Revolutionary Army
Wusung – Shanghai Siege Area (Aug. 7 1937) Nanking Shanghai Garrison – Zhang Zhizhong (50,000 men). 36th Division – Song Xilian[g] 87th Division – Wang Chingchin[g] 88th Division – Sun Yuanliang[g] 55th Division – Li Sungchan 56th Division – Liu Hoting (later Liu Shangchih) 57th Division – Yuan Chaochang [R] 20th Sep. Bde – Gen. Chen Mienwu
[g] German trained Reorganized Divisions
[R] Reorganized Divisions
Shanghai City demilitarised on Chinese side according to Shanghai Ceasefire Agreement (1932) Wusong-Shanghai Garrison Units (Peace Preservation Corps)
Centralized Chinese Air Force Units (includes former aviators of various warlord air forces and Chinese-American Volunteers) Zhoujiakou Airbase, Zhoukou, Henan – 4th Pursuit Group - Col. Gao Zhihang (21st, 22nd, 23rd Pursuit Squadrons). Jurong Airbase, Nanjing, Jiangsu - 3rd Pursuit Group - Capt. Wong Pan-Yang (8th, 17th Pursuit Squadrons and 34th Provisional PS) - 5th Pursuit Group - Capt. Chan Kee-Wong (28th PS)
Japan
Imperial Japanese Navy
3rd Fleet : Admiral Hasegawa Kiyoshi
Flagship: Izumo (Izumo class armoured cruiser) Notoro (seaplane tender) 8 Nakajima E8N Reconnaissance float aircraft 11th (Gunboat) Sentai - Rear Admiral Tanimoto Umataro Flagship: Yaeyama (minelayer) Ataka (Gunboat) Katada (Gunboat) Sumida (Gunboat) Kuri (Momi class destroyer) Hozu (Gunboat) Futami (Gunboat) Kotaka (Gunboat) Tsuga (Momi class destroyer) Hasu (Momi class destroyer) Atami (Gunboat) Seta (Gunboat Toba (Gunboat) Hira (Gunboat) 8th (Cruiser) Sentai - Rear Admiral Nagumo Flagship: Kinu Natori Yura 1st (Destroyer) Sentai - Rear Admiral Yoshida Sendai Shanghai Special Naval Landing Force - Rear Admiral Denshichi Okawachi 1st Battalion - Lt. Cdr. Uroku Hashimoto 2nd Battalion - Lt. Shigeshi Sano 3rd Battalion - Lt. Shegeru Ito 4th Battalion - Artillery unit, Disbanded at the outbreak of war, guns were dispersed to the infantry units. 9th Battalion - Lt. Cdr. Torashige Tsukioka 10th Battalion - Lt. Cdr Haji Kitaro Prior to hostilities: Total force (2,500 men) Special Naval Landing Force reinforcements as of 8/1/37 from 3rd Fleet 8th Sentai NLF 1st Destroyer Sentai NLF 3rd Destroyer Sentai NLF Izumo NLF
Reservists and volunteers (5000 men) 1st Reserve Infantry Regiment 2nd Reserve Infantry Regiment (Armed reservists were men in civilian clothes distinguished by a brassard)
Notes: Third Fleet operated in Central and South China waters. 11th Squadron evacuated Japanese civilians from the interior to Shanghai during July and early August.
Order of battle soon after August 13, 1937
China
National Revolutionary Army
3rd Military Region - Generalissimo Chiang Kai-shek (20 Aug 1937)
Wusung – Shanghai Siege Area
9th Group Army - Gen. Zhang Zhizhong
36th Division - Gen. Song Xilian[g]
56th Division - Gen. Liu Hoting
87th Division - Gen. Wang Chingchin[g]
88th Division - Gen. Sun Yuanliang[g]
20th Separate Brigade - Gen. Chen Mienwu
Training Division (part) - Gen Huei Yungching
Wusong-Shanghai Garrison Units (Peace Preservation Corps) 10th Heavy Artillery Regiment [sFH 18 L/32 150mm Howitzer] 3rd Artillery Regiment 8th Artillery Regiment 2 Heavy Mortar Units 2 Anti-tank batteries 1 Light Tank Battalion
Yangtse River Right Bank Garrison Sector
54th Army – Gen. Huo Kweichang
11th Division – Gen. Peng Shan[R]
14th Division - Gen. Chen Lie[g]
67th Division - Gen. Huang Wei[R]
16th Artillery Regiment (under command of Siege Area)
Yangtse River Left Bank Garrison Sector
57th Army – Miao Chengliu
111th Division – Gen. Chen Ento
112th Division – Gen. Huo Shuoyi
Hangchow Bay Left Bank Garrison Sector
8th Group Army – Gen. Zhang Fakui
61st Division – Gen. Chung Sung
62nd Division – Gen. Tao Liu
55th Division – Gen. Li Sungshan
57th Division – Gen. Yuan Shaochang[R]
45th Separate Brigade – Gen. Chan Luanchi
2nd Artillery Regt.