David Cameron is expected to outline his plan for defeating Islamic State (IS) to MPs this week as he seeks to bolster support for UK air strikes in Syria.
The Prime Minister will unveil a seven-point plan in a paper to be published at the end of the week which will include a blueprint for Syria's future, the Sunday Times reported.
If the plan wins the backing of Parliament, bombing raids could start within weeks, the newspaper said.
Mr Cameron will visit Paris on Monday to meet French president Francois Hollande for talks at the Elysee Palace.
The visit comes 10 days after IS militants attacked a concert hall, the French national stadium and several cafes and restaurants in Paris, killing 130 and leaving hundreds injured. Ninety remain in intensive care.
Military action in Syria grew a step closer following approval by the United Nations Security Council for plans to redouble its efforts to prevent further attacks from extremists.
The UN security council backed a French-sponsored resolution designed "to combat by all means this unprecedented threat", saying IS "constitutes a global and unprecedented threat to international peace and security".
It was hailed as an "important moment" by Mr Cameron who said the vote "shows beyond doubt the breadth of international support for doing more in Syria and for decisive action to eradicate" IS, which he described as "this evil death cult".
But Labour leader Jeremy Corbyn warned against "external intervention", instead urging efforts to find a diplomatic solution to Syria's civil war.
France will be on a state of high alert until well in to the new year after the country's senate voted to extend a state of emergency for three months.
The move expands powers to allow police to carry out arrests and searches, while authorities can ban the movement of people and vehicles at specific times and places.
The lead singer of rock band Eagles of Death Metal has told how Paris terrorists slaughtered fans hiding in the band's dressing room after striking at their concert.
In an emotional interview with Vice, Jesse Hughes, 43, described how just one person in the room survived - by hiding under the vocalist's leather jacket.
Eighty nine people were killed during the band's gig at the Bataclan on November 13, when Islamist gunmen struck, firing indiscriminately at the crowd. More than 100 more were injured in the venue.
Vice released a 55-second clip of an interview by its founder Shane Smith with Hughes and band co-founder Josh Homme, the frontman of Queens of the Stone Age, ahead of the full interview being released on www.vice.com next week.
In the video, a clearly emotional Hughes said: "Several people hid in our dressing room and the killers were able to get in and killed every one of them, except for a kid who was hiding under my leather jacket.
"People were playing dead and they were so scared - a great reason so many were killed was because so many people wouldn't leave their friends. So many people put themselves in front of people."
As the terrorists held people hostage at the Bataclan, armed French police stormed the building and shot one dead, while two others blew themselves up using suicide vests. Another gunman died nearby.
One of those killed was Nick Alexander, 36, from Colchester, who was selling merchandise for the band.