Simms became a Fellow of Peterhouse and now also serves as Professor of the History of European International Relations at the
University of Cambridge, where he lectures and leads seminars, specializing in international history since 1945. In addition to his academic work, Simms also serves as the president of the
Henry Jackson Society, which advocates the view that supporting and promoting
liberal democracy and
liberal interventionism should be an integral part of Western foreign policy, and as President of the
Project for Democratic Union, a Munich-based student-organised think tank. He has advocated that the
Eurozone should create a
United States of Europe, and also that this should continue the traditions of the
Holy Roman Empire, appointing an elected Emperor. ==
Europe: The Struggle for Supremacy==