Battle of Ambarawa

Semarang offensive
	Part of the Indonesian National Revolution
Date	20 October 1945 - 2 March 1946; (4 months, 1 week and 3 days)
Location	Central Java, Indonesia
Result	Indonesian strategic victory
Territorial; changes	Ambarawa, Magelang, and Semarang is fully recaptured by Indonesian forces.
Belligerents
Indonesia	United Kingdom British Raj; Supported by:; NICA
Commanders and leaders
Col. Soedirman (Leader of People's Security Army, Division V/Banyumas); Lt. Col. Isdiman †; Lt. Col. Gatot Subroto (Division V/Purwokerto); Lt. Col. M. Sarbini (Central Kedu Regiment); Maj. Sarjono (Battalion VIII Division III/Surabaya); Maj. Soeharto (Battalion X Division IX/Yogyakarta)	Brigadier R. G. Bethell
Units involved
Indonesian Army; 5th Division (Banyumas); Civilian Militias (Laskar-laskar Rakyat);	British Army 23rd Infantry Division (India) 23rd Artillery Brigade; ;
Strength
10,000+ (Battle of Ambarawa)	<7,000 (Battle of Ambarawa)
Casualties and losses
2,000 killed (Battle of Ambarawa, including civillians)	100 killed (in Ambarawa only)

The Semarang offensive is composite of the Battle of Ambarawa (20 October--15 December 1945; 55 days), Magelang offensive(26 October--15 December 1945; 49 days) ^[2], Battle of Ungaran or Ungaran offensive, and Semarang offensive proper (15 December 1945--2 March 1946; 87 days) (Indonesian: Palagan Ambarawa). This major battle took place between the recently created Indonesian Army and the British Army with the Dutch forces that occurred between 20 October 1945 and 2 March 1946 in Semarang city, Semarang Regency, and Magelang Regency in Central Java, Indonesia. Perhaps the most successful Indonesian offensive of the Indonesian Revolution, this offensive burned up all British and Dutch forces in the Semarang Metropolitan area, turning them into ashes. In modern times, 15 December is celebrated as the Indonesian National Infantry Day.

^ Matanasi, Petrik (15 December 2017). "Pertempuran Ambarawa, Kemenangan yang Memakan Banyak Korban". Tirto.id. Archived from the original on 2021-04-18. Retrieved 10 November 2021.
^ "Pertempuran Ambarawa: Latar Belakang, Tokoh, Akibat, dan Akhir", Klik untuk baca: ["Battle of Ambarawa: Background, Result, Figures, and Outcome", Click to read:"] https://www.kompas.com/stori/read/2021/05/22/161749679/pertempuran-ambarawa-latar-belakang-tokoh-akibat-dan-akhir.

[1] Matanasi, Petrik (15 December 2017). "Pertempuran Ambarawa, Kemenangan yang Memakan Banyak Korban". Tirto.id. Archived from the original on 2021-04-18. Retrieved 10 November 2021.

[2] "Pertempuran Ambarawa: Latar Belakang, Tokoh, Akibat, dan Akhir", Klik untuk baca: ["Battle of Ambarawa: Background, Result, Figures, and Outcome", Click to read:"] https://www.kompas.com/stori/read/2021/05/22/161749679/pertempuran-ambarawa-latar-belakang-tokoh-akibat-dan-akhir.

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