In her opening statement, Ambassador Maria Francesca Spatolisano from the European Union underlined the importance of this conference as a follow up to the Cairo declaration adopted at the Second European Union-League of Arab States Foreign Affairs Ministerial meeting in Egypt in November.

UNESCO: MEDIA SERVICES

Former defence secretary Liam Fox urged Mr Cameron to make an "unambiguous declaration" that Britain will not continue down the road of "ever-closer union" and to put a new deal on Europe to a referendum.

BBC: Vince Cable urges PM to avoid 'dangerous EU gamble'

One of the best remembered moments is the declaration of the "Four Freedoms" in Franklin Roosevelt's 1941 State of the Union -- the freedom from want, the freedom from fear, the freedom of speech and the freedom of worship.

CNN: 8 memorable State of the Union moments