Operation Manhattan was an operation conducted by the 1st and 2nd Brigades, 25th Infantry Division and the 3rd Brigade, 4th Infantry Division in the Ho Bo Woods/Bến Củi area, lasting from 23 April to 7 June 1967.:146
The operation commenced on 23 April. On 9 May 2nd Brigade, 25th Infantry Division withdrew from the operation and returned to Củ Chi Base Camp to prepare for Operation Kolekole. On 10 May 3rd Brigade, 4th Infantry Division withdrew from the operation and returned to Dầu Tiếng Base Camp to prepare for Operations Ahina and Operation Diamond Head. The 1st Brigade, 25th Infantry Division continued the operation, providing security for the 65th Engineer Battalion which used Rome plows to destroy VC fortifications when discovered.
Operation Manhattan officially concluded on 7 June, VC losses were 74 killed, with a further 99 estimated killed, 19 captured and three Chieu hoi. A total of 201 small arms and 18 crew-served weapons were captured.
- MacGarrigle, George (1998). Combat Operations: Taking the Offensive, October 1966 to October 1967. United States Army Center of Military History. ISBN 9780160495403. This article incorporates text from this source, which is in the public domain.
- "Operational Report Lessons Learned period ending 31 July 1967" (PDF). Headquarters 25th Infantry Division. 22 November 1967. Retrieved 22 October 2017. This article incorporates text from this source, which is in the public domain.