"fatwaagainst any Muslim who would attempt to commit an act of terrorism in Canada or the United States.
Syed Soharwardy, an imam at the Al-Madinah Calgary Islamic Centre, who organized the initiative, said on Friday that any attack by foreign elements should also be considered a direct affront to the 10 million Muslims who call either Canada or the United States home.
our soil to know that we stand together with all Canadians and Americansthemselves
"The journey of reconciliation began almost a year ago in Huntsville, Texas. Mr Neely, 29, had left the US military in 2005 to become a police officer and was still struggling to come to terms with his time as a guard at Guantanamo.
He felt anger at a number of incidents of abuse he says he witnessed, and guilt over one in particular.
Highly controversial since it opened in 2002, Guantanamo prison was set up by President George Bush in the aftermath of the 9/11 attacks to house suspected "terrorists". But it has been heavily divisive and President Barack Obama has said it has "damaged [America's] national security interests and become a tremendous recruiting tool for al Qaeda".
Mr. Neely recalls only the good publicity in the US media.
"The news would always try to make Guantanamo into this great place," he says, "like 'they [prisoners] were treated so great'. No it wasn't. You know here I was basically just putting innocent people in cages."