His Royal Highness the Duke of Kent (below) joined veterans, their families and representatives of the Army, the RAF and the Navy, at the Chapel of St Faith within the crypt of St Paul's Cathedral.
The Ministry of Defence organised the service.
Tributes were paid to everyone involved in the conflict, but especially those who lost their lives. Their names are written on the Gulf War memorial within St Paul's Cathedral.
In all around 53,000 UK personnel were deployed to fight in the Middle Eastern conflict, which lasted from August 2nd 1990 until February 28th 1991.
It was after the late Saddam Hussein illegally commanded Iraqi troops to invade neighbouring Kuwait, which has significant oil reserves.
The United Nations condemned the invasion at the time and imposed a host of sanctions on Iraq before a fightback led by the United States began.
