Operation Searchlight was the codename for a planned military operation carried out by the Pakistan Army in an effort to curb the Bengali nationalist movement in erstwhile East Pakistan in March 1971. Pakistan retrospectively justified the operation on the basis of anti-Bihari violence carried out en masse by the Bengalis earlier that month. Ordered by the central government in West Pakistan, the original plans envisioned taking control of all of East Pakistan's major cities on 26 March, and then eliminating all Bengali opposition, whether political or military, within the following month. West Pakistani military leaders had not anticipated prolonged Bengali resistance or later Indian military intervention. The main phase of Operation Searchlight ended with the fall of the last major Benga