David McAllister is a political ally of Chancellor Angela Merkel and Chairman of the European Parliament’s Foreign Affairs Committee. Germany is Europe's pre-eminent power, but how will Berlin use that power over the next decade? The composition of the country's next governing coalition has yet to be decided, and there are strategic uncertainties too. How far does Berlin want to push EU integration, and how wide could transatlantic differences become?(Photo: David McAllister speaks at the annual CDU party congress 2014 in Cologne, Germany. Credit: Sean Gallup/Getty Images)