Rhodesia began to lose vital economic and military support from South Africa, which, while sympathetic to the white minority government, never accorded it diplomatic recognition. The South Africans placed limits on the fuel and munitions they supplied to the Rhodesian military. They also withdrew the personnel and equipment that they had previously provided to aid the war effort. In 1976 the South African and United States governments worked together to place pressure on Smith to agree to a form of majority rule. The Rhodesians now offered more concessions, but those concessions were insufficient to end the war.