Swedish Foreign minister Margot Wallstrom, U.N. envoy to Yemen Martin Griffiths and delegates attend the opening press conference on UN.-sponsored peace talks for Yemen at Johannesberg castle, in Rimbo, Sweden. TT News Agency/via REUTERS 
Swedish Foreign minister Margot Wallstrom, U.N. envoy to Yemen Martin Griffiths and delegates attend the opening press conference on UN.-sponsored peace talks for Yemen at Johannesberg castle, in RimbShow more

Cautious optimism reigns over Yemen peace talks