On 1 August 1947, an Australian resolution in the
United Nations Security Council calling for a ceasefire between the Dutch and Indonesian Republican forces was passed. Dutch Lt. Governor-General
Van Mook gave the ceasefire order on 5 August. On 25 August, the Security Council passed a resolution proposed by the
United States that the Security Council tender its good offices to help resolve the Dutch-Indonesian dispute peacefully. This assistance would take the form of a Committee of Good Offices (CGO, known locally in Indonesia as the
Trilateral Commission (, not to be confused with the current
Trilateral Commission)) made up of three representatives, one appointed by the Netherlands, one by Indonesia and a third, mutually agreed by both sides. The Dutch chose a representative from
Belgium, Indonesia chose one from
Australia and both agreed on the US for the third member. A few days later, on 29 August 1947, the Dutch proclaimed the Van Mook Line, claiming it marked the extent of the areas they held as of the ceasefire. However, the Dutch included areas of Indonesia the Dutch had not reentered. The republic was left with about a third of Java and most of the island of
Sumatra, but the republican forces were cut off from the main food-growing regions. A Dutch blockade then stopped arms, food, and clothing from reaching the republicans. ==The negotiations begin==