On April 18, Armenian Genocide Centenary Commemoration Committee organized thousands of people march down the high streets of London.

At memorial to the war dead of World War I at Whitehall government district, leaders of Dioceses of the Armenian Apostolic Church and community structures, as well as joined staff of the Embassy of Armenia in the UK, laid wreaths in the memory of victims of the Armenian Genocide. A Requiem Mass was served. The march walked through downtown to St Paul's Cathedral, where commemorative event was organized.

On the same day, at Southwark Cathedral, one of London’s biggest and most renowned churches, well-attended commemorative event was held. The Ambassadors accredited to London, diplomats, clergymen of Anglican and sister-churches, representatives of British Armenian community, journalists and number of guests participated were in the attendance.

Dean of Southwark Andrew Nunn, MEP Charles Tannock welcomed the attendees. Later, British politician, Member of the European Parliament for London Charles Tannock, Former President of the International Association of Genocide Scholars William Schabas, member of the British House of Lords, friend of Armenia and Artsakh, Baroness Caroline Cox and Diocese of Sourozh, Russian Orthodox Church Archimandrite Elisey delivered messages.

The speakers expressed solidarity with the Armenian people in the just thing of recognition and condemned denial by Turkey.

In his concluding remarks, Ambassador of the Republic of Armenia to the United Kingdom of Great Britain and Northern Ireland Armen Sargsian presented the loss of the Homeland of Armenians by the story of his family, endured pain and sufferings; and Armenian’s strength and steadfast spirit to revive, inevitability of triumph of justice and truth. Ambassador Sargsian concluded his remarks, stressing that the plans of the perpetrators of the Armenian Genocide never came true, as an Armenian was able not only to survive the tragedy, but also to create new Armenia and victorious Artsakh.