Thousands of Muslims have decided to come out openly assailing terrorism and take part in a peace conference in London.

More than 12,000 Muslims are expected to gather at Wembley Arena for Peace for Humanity Conference, predicts Islamic faction Minhaj-ul-Quran. The conference will set up a campaign to have a sign of one million people for an online declaration of peace by 2012.

Tahir-ul-Qadri, founder of Minhaj-ul-Quran, the organization holding the conference said it is aimed at sending a clear message that the 10-year-long terrorism should end now. He said the conference will call for justice, tolerance and justice.

"We should strive together, to bring an end to the era of extremist terrorism so that the peace and love and fraternity - which is lost because of unfortunate extremist activity in the last decade - should come to end and we may restore the peace, love and smiles on the faces of mankind", Tahir told BBC.

Tahir has always stressed the need to reject all kinds of terrorism, saying all religions believe in the sanctity of the lives of the innocent. The arbitrary nature of terrorism, has taken the lives of civilians and other non-combatants, he pointed out.

In support of the conference, an encouraging video message from political leaders such as Deputy Prime Minister Nick Clegg, Communities Secretary Eric Pickles and Opposition leader Ed Miliband will be played.

Last year, Tahir had declared a fatwa - or religious decree - against terrorism in London.