Factbox: Highlights of EU deal with Britain

By Alastair Macdonald BRUSSELS (Reuters) - These are key sections of the deal struck by European Union leaders with David Cameron, on which the prime minister announced he will campaign to maintain British membership of the bloc in a referendum on June 23. INTERNATIONAL TREATY "The Heads of State or Government of the 28 Member States ... whose Governments are signatories of the Treaties on which the Union is founded, desiring to settle, in conformity with the Treaties, certain issues raised by t