On 13 September 1961, the most obvious example of the transition from peacekeeping to peace enforcement occurred when the Indian ONUC leadership on the ground leading an Indian brigade, launched "Operation Morthor" (Hindi: smash and grab) and swiftly took control of Katanga. The operation was meant to be a stepped up version of the earlier Operation Rumpunch. It has been said that Secretary-General Hammarskjöld did not know the operation was happening. However, it is now clear that he had prior knowledge of the operation.