Southern African leaders are set to convene an urgent meeting in Swaziland's capital Mbabane on Wednesday to address the crisis in Zimbabwe. Zimbabwean opposition leader Morgan Tsvangirai has called on the United Nations to isolate President Robert Mugabe and deploy a peacekeeping force in Zimbabwe. Despite the U.N. Security Council's recent condemnation of violence against the opposition and declaration that a free and fair presidential election on Friday was not possible, Mugabe remains defiant. The meeting in Mbabane, organized by the Southern African Development Community (SADC), comes as international pressure mounts on Mugabe to resolve the political and economic crisis in his country. The leaders of Tanzania, Angola, and Swaziland will participate in the meeting as part of the SADC's troika organ on politics, defense, and security, according to a statement from the Tanzanian government. The current SADC chairman, President Levy Mwanawasa of Zambia, and the SADC mediator for Zimbabwe, President Thabo Mbeki of South Africa, have been invited to attend the meeting, as stated. The meeting will focus on how the SADC and its troika organ on politics, defense, and security can assist Zimbabwe in resolving its current state of conflict. Tsvangirai, who has sought refuge in the Dutch embassy in Harare after withdrawing from the election, expressed concerns that Zimbabwe would suffer without international intervention. He called on the U.N. to take more decisive action, including isolating President Mugabe, and emphasized the need for a protective force for the people. Tsvangirai emphasized the need for global leaders to support their words of condemnation with military force in order to protect the people of Zimbabwe and uphold the democratic process. Pressure is mounting on Mugabe from various sources, including the United States urging SADC to declare the election and his government as illegitimate due to the country's ongoing crisis. Angola's state-owned ANGOP news agency reported that SADC executive secretary Tomaz Salomao stated that foreign ministers agreed during a meeting on Monday that there was a "climate of extreme violence" in Zimbabwe and that the government needed to protect its citizens. The election on Friday was supposed to be a run-off between Mugabe and Tsvangirai, with Tsvangirai winning the first round in March but not securing an outright victory according to official figures. Tsvangirai's Movement for Democratic Change also won a separate parliamentary election in March, marking the first defeat for Mugabe's ZANU-PF party since independence from Britain in 1980. Senegalese President Abdoulaye Wade and the leader of South Africa's ruling African National Congress both stated that Friday's election should be postponed following Tsvangirai's withdrawal. Zuma, who is seen as one of the most powerful figures in South Africa, has urged the United Nations and SADC to intervene urgently in the situation in Zimbabwe, which he believes is spiraling out of control. While Mbeki's administration has favored a policy of "quiet diplomacy" with Mugabe and resisted using economic pressure on Zimbabwe, Zuma, who replaced Mbeki as leader of the ANC in December, has been more vocal in his criticism of Mugabe. Despite international pressure, Mugabe remains defiant and has stated that the upcoming election will proceed as planned. Mugabe stated that elections will continue, and those who wish to acknowledge the government's legitimacy may do so, while those who do not should refrain. Mugabe has overseen a decline into economic turmoil, with 80 percent unemployment and the highest inflation rate in the world, at least 165,000 percent. He attributes his country's economic difficulties to Western sanctions.