David Cameron made an unequivocal pledge to hold a referendum on Britain's membership of the European Union this week - providing he wins the next election.
In a wide ranging speech on Britain's historical position in European politics, he attempted to make a case that the country was better off in the EU - but only if there is substantial reform in Brussels. He promised that if other European leaders met his demands, he would lead the campaign to keep Britain in the union.
However, his concession of a referendum was seized upon with glee by Conservative backbenchers - many of whom fear a challenge from Ukip at the next election.
Labour's Ed Miliband appeared to rule out holding an in/out referendum. Or did he?
Joining Tom Clark to discuss all of this are political commentators Simon Jenkins, Rafael Behr and Andrew Gimson.
Also this week: new cuts to the army have been announced by the government as military spending continues to be squeezed. Is it time to consider scrapping Britain's expensive nuclear weapons?
Leave your thoughts below.
