This chapter examines the records of Armstrongs and Vickers in selling armaments in Asia over a century. As part of their foreign policy strategies, the firms built diplomatic relationships with states in the region– independent of the British Government– using their own agent-diplomats and reaped impressive rewards for their labors. At the start of the Armstrongs pioneered many gun and warship deals with China (aided by Sir Robert Hart) and Japan. Armstrongs created lasting relationships with key Chinese and Japanese government officials, hosting numerous delegations, and many of the firms’ management received state decorations for their services. The relationship between Armstrongs and China spanned more than six decades and survived several changes of regime. After Vickers moved into warship production just before the turn of the century, they also began to secure lucrative contracts in the region, sometimes competing with Armstrongs and sometimes allying with her. Business was interrupted by the Great War. Weapons ordered by Siam before the war were delivered afterwards. In the interwar period armament sales did not match their previous levels, though Vickers-Armstrongs vigorously pursued Chinese sales.