At a signing ceremony on the White House lawn in 1993 , after a reluctant handshake with the P.L.O . 's Yasir Arafat , Prime Minister Yitzhak Rabin of Israel said : '' We , the soldiers who have returned from battles stained with blood ; we who have seen our relatives and friends killed before our eyes ... we who have fought against you , the Palestinians , we say to you today in a loud and a clear voice : enough of blood and tears .