In 1967, Zambian President Kenneth Kaunda mediated peace talks between Somali Prime Minister Mohamed Egal and Kenyatta. These bore fruit in October 1967, when the governments of Kenya and Somalia signed a Memorandum of Understanding (the Arusha Memorandum) that resulted in an official ceasefire, though regional security did not prevail until 1969. After a 1969 coup in Somalia, the new military leader Mohamed Siad Barre, abolished this MoU as he claimed it was corrupt and unsatisfactory. The "Manyatta" strategy is seen as playing a key role in ending the insurgency, though the Somali government may have also decided that the potential benefits of a war simply was not worth the cost and risk. However, Somalia did not renounce its claim to Greater Somalia.