JUBA, March 30 (Reuters) - South Sudan's President Salva Kiir has appointed a member of his own party as defence minister, according to a decree read on state media, breaching a peace deal in which the role should be selected by the party of opposition leader Riek Machar. Kiir fired defence minister Angelina Teny, who is also First Vice President Machar's wife, along with the interior minister this month, re-igniting long-standing disagreements over how the two war veterans share power. Implementation of the deal has been slow, and bouts of fighting have continued to kill and displace large numbers of civilians. "The appointment of Chol Thon as a minister of defence is unilateral and a new blatant violation of the peace agreement," said Puok Both Baluang, Machar's spokesperson, calling for Teny to be reinstated. The stalemate is likely to cause paralysis in the implementation of the peace deal, which is meant to culminate in a national election at the end of 2024, said Boboya James, a policy analyst at the Juba-based Institute of Social Policy and Research.

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