In the late 1950s and early 1960s, the Netherlands still possessed the western part of New Guinea, which it had agreed to discuss a year after the Round Table Conference. Following failed negotiations and the incorporation of the region into Netherlands, Sukarno decided to adopt a more forceful stance, later escalating into military operations such as Operation Trikora. After the New York Agreement in 1962, the Netherlands agreed to hand over the territory to Indonesia.