By City AM reporter Sir Keir Starmer is expected to be at a major security conference in Germany on Saturday for talks and meetings with world leaders. He will arrive at the Munich Security Conference fresh from two by-election victories, with Sir Keir expected to use the annual event to stress his party’s commitment to Nato, defence and security. The Labour leader’s visit, with shadow foreign secretary David Lammy and shadow defence secretary John Healey, is believed to be the first Labour leader has attended since 2010. Lord Cameron has been among the senior politicians at the security confe…