By Jessica Frank-Keyes Sir Keir Starmer is set to woo major investors during a European trip which will see him launch negotiations for a major new UK-Germany treaty. The Prime Minister is set to meet bosses from Siemens Energy and Rheinmetall, as well as investors from Thales, Eutelsat, Mistral AI and Sanofi during visits to Berlin and Paris. Sir Keir will also meet German Chancellor Olaf Scholz for the fifth time as the leaders launch talks on the new bilateral treaty, which will focus on business, trade, defence, security, and migration, and is set to be closer than any previous agreement b…