War is a 2019 Indian Hindi-language action thriller film directed by Siddharth Anand and produced by Aditya Chopra under Yash Raj Films. Written by Anand, Shridhar Raghavan and Abbas Tyrewala on the basis of an original story by Chopra and Anand, it serves as the third installment in the YRF Spy Universe. The film stars Hrithik Roshan and Tiger Shroff in the lead roles, with Vaani Kapoor and Ashutosh Rana in pivotal roles; the story follows an Indian RAW agent on an assignment to eliminate his former mentor who has gone rogue.

Principal photography commenced in September 2018. Tentatively titled Fighters, the title was announced as War through a teaser on 15 July 2019. The film was made on an estimated budget of ₹150 crore (US$18 million) with a further ₹20 crore (US$2.4 million) spent on print and advertising. Two songs were composed by Vishal–Shekhar while brothers Sanchit Balhara and Ankit Balhara composed the background score, replacing Anand's frequent collaborators Salim–Sulaiman, who had previously composed the background score of Bang Bang!, which also starred Roshan.

War was theatrically released on 2 October 2019 along with dubbed versions of Telugu and Tamil languages, coinciding with Gandhi Jayanti. It received positive reviews with praise towards its action scenes , visuals, direction , cinematography, soundtrack, along with Roshan and Shroff's performances. It eventually emerged as a major success grossing ₹4.75 billion (US$67.45 million), becoming the highest-grossing Indian film of 2019. A sequel titled War 2 is in production and is expected to release on 14 August 2025.