The presence of U.S. troops on the Golan would increase the likelihood of U.S. opposition to pre-emptive militaryaction by Israel, no matter how urgent or well-advised.
On the issue of Iran's nuclear ambitions, Lord Rosser said "sanctions are now beginning to put considerable pressure on the Iranian regime" and urged against any pre-emptive militaryaction.
At his talks with George Bush in Crawford in April, he backed the case for a "regime change" (though he didn't use those words), and pre-emptive militaryaction if necessary.