 After heavy fighting between the British Indian forces and around 20,000 Indonesian armed regulars of the newly formed People's Security Army (TKR) and mobs of 70,000–140,000 people, the British flew in the influential President Sukarno, Vice-President Hatta and his ministers Amir Sjarifuddin, and a ceasefire was achieved on 30 October.On 26 October 1945, Brigadier A. W. S. Mallaby reached an agreement with Mr Suryo, the Republic of Indonesia's governor of East Java, that the British would not ask Indonesian troops/militia to hand over their weapons.An apparent misunderstanding about the agreement between British troops in Jakarta (led by Lieutenant General Sir Philip Christison) and Mallaby's troops in Surabaya was to have serious ramifications.