LONDON (AFP) - Former British prime minister Tony Blair said Monday the fight against terrorism remained as urgent as ever following the killing of Al-Qaeda leader Osama bin Laden. Blair said Bin Ladens death was a huge achievement and showed that the perpetrators of atrocities would be brought to justice, no matter how long it took. Blair was Britains premier at the time of the September 11, 2001, attacks on the United States and the July 7, 2005, suicide bombings in London. His steadfast support for Washington following the 2001 atrocities, placing Britain as the United States key ally in the Iraq and Afghanistan conflicts, in many ways shaped his 10-year premiership. My heartfelt gratitude to President Obama and to all of those who so brilliantly undertook and executed this operation, Blair said in a statement. We should never forget 9/11 was also the worst ever terrorist attack against UK civilians, and our thoughts are with all thoseAmerican, British and from nations across the worldwho lost their lives and with their loved ones who remain and who live with their loss. 9/11 was an attack not just on the United States, but on all those who shared the best values of civilisation. The operation shows those who commit acts of terror against the innocent will be brought to justice, however long it takes. So this is a huge achievement in the fight against terrorism but we know the fight against the terrorism and the ideology that Bin Laden represents continues and is as urgent as ever.