Secretary -- former Secretary Kissinger last week said that along with following the recommendations of his ambassador and the generals in Afghanistan, President Obama should support an international conference and treaty that guarantees neutrality of Afghanistan in the long term, and he likened it to the Treaty of London that guaranteed Belgium neutrality.

WHITEHOUSE: 10/14/09: White House Press Briefing

Mr Cameron used his veto last month to opt out of the treaty, arguing that the UK needed to keep its authority over financial services in the City of London.

BBC: EU summit: UK and Czechs refuse to join fiscal compact

During stops this week in Berlin, London and Paris, Powell tried to quell European concerns about the consequences of scrapping the treaty, U.S. officials said.

CNN: Bush to quit ABM treaty Thursday