I refer the noble Lord to the Statement made in the House of Commons on 10 February by the Secretary of State for Foreign and Commonwealth Affairs, my right hon. Friend the Member for Runnymede and Weybridge (Mr Hammond), which I repeated in the House of Lords, Official Report, Columns 1109-1112.
The Foreign Secretary said that in a meeting during the D-Day 70th Anniversary Commemorations in Normandy last summer, the UK agreed with the US and our European partners that the most effective channel of communication with the Kremlin would be through a small group. This is known as the Normandy Format, comprising Germany, France as the host of the Normandy meeting, Ukraine and Russia.
The Foreign Secretary and the US Secretary of State were in regular contact with their German and French counterparts to discuss the recent diplomatic efforts.