'Stamina' was the Allied airlift of forces from Lieutenant General A. F. P. Christison’s Indian XV Corps in the Arakan coastal region of western Burma to reinforce Lieutenant General Sir Geoffrey Scoones’s Indian IV Corps at Imphal (19 March/12 May 1944).

The operation was started shortly after Lieutenant General Renya Mutaguchi’s 15^th Army had launched its 'U' (ii) offensive against Imphal and Kohima as the planned prelude to an invasion of north-eastern India, and included (among others) Brigadier G. C. Evans’s Indian 123^rd Brigade and Brigadier D. F. W. Warren’s Indian 161^st Brigade of Major General H. R. Briggs’s Indian 5^th Division during March, and Brigadier F. J. Loftus-Tottenham’s Indian 33^rd Brigade and Brigadier W. A. Crowther’s Indian 89^th Brigade of Major General F. W. Messervy’s Indian 7^th Division during April and the first part of May.