The British parliament backed a plan to join the fight against ISIS in Iraq by 524 votes to 43 on Friday.
Prime Minister David Cameron requested lawmakers approve his plan to join the United States and a growing number of allies in striking ISIS in Iraq, stressing that the "psychopathic, murderous, brutal" group "is not a threat on the far side of the world."
"Left unchecked, we will face a terrorist caliphate on the shores of the Mediterranean, bordering a NATO member, with a declared and proven determination to attack our country and our people," Cameron said, according to The New York Times. "This is not the stuff of fantasy — it is happening in front of us and we need to face up to it." 


Cameron faced a parliament that wary of another long war in Iraq, and that doesn't want this to become the beginning of a wider, longer conflict.
"How long will this war last and how soon will mission creep start?" asked veteran Labour MP Dennis Skinner, interrupting Cameron shortly after he began his speech.
Despite skepticism, British lawmakers were expected to approve Cameron's plan, which, in any case, is limited. The motion proposed by Cameron only allows for strikes in Iraq to protect civilians against ISIS brutality, and to restore Iraq's territorial integrity. It also excludes any action in Syria unless the House of Commons approves it in a separate vote.
Awaiting the approval, six Royal Air Force Tornado jets are ready to scramble from Cyprus within 24 hours of the vote. The jets already flew over Iraq on Wednesday in an intelligence gathering mission, as reported by the Guardian.
The UK's vote comes two weeks after ISIS executed British aid worker David Haines, and just over a week after a British photographer appeared in a propaganda video, calmly sitting at a desk and promising to tell "the truth" about ISIS, in order to stop a "seemingly inevitable sequence of events" that was leading to war.
On Friday, Denmark became the latest country to join the fight, sending seven F-16 fighter jets, along with 250 pilots and support staff.