Ben Wallace thinks Ukraine needs to be careful. The West has used a whole load of political energy this week to try and bring Ukraine closer to Nato, and its government’s response has been a bit unthankful. ‘There is a slight word of caution here,’ Wallace told a gaggle of reporters this morning, on the sidelines of the Nato summit in Vilnius, ‘which is that whether we like it or not, people want to see gratitude.