Prime Minister David Cameron has vowed to "make the case" for Britain to join the coalition carrying out airstrikes against the so-called Islamic State in Syria.
But such a move would raise other questions - including what would be done to help civilians still living in the country.
ITV News international affairs editor Rageh Omaar explains what could happen if MPs vote yes:
Discovery prompts speculation about movements of fugitive Salah Abdeslam on the night of the attacks.Read the full story ›
A suspected explosive belt found by French police in the southern Paris suburb of Montrouge, contained the same explosives as those used in the Paris attacks, the Associated Press have reported a French official as saying.
BREAKING: Official: Explosive belt found south of Paris contained bolts, same explosives used in attacks.
The belt, which was recovered without a detonator, was found, reportedly by a street cleaner, in Montrouge earlier today.
The explosive material was TATP, the Associated Press quoted the official as saying - the same material used in seven other explosive vest in the attacks on 13 November that killed 130 people.
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An explosive belt without a detonator has been found in the southern Paris suburb of Montrouge, French police have said.
The belt was found in a public litter box, according to a Reuters source.
Rock band U2, which cancelled two tour dates in Paris in the wake of the attacks there, has announced rescheduled concert dates for next month.
"So much that was taken from Paris on the tragic night of November 13 is irreplaceable," the band's frontman, Bono, said.
"For one night, the killers took lives, took music, took peace of mind - but they couldn't steal the spirit of that city."
The band will play on December 6 and 7, at the AccorHotels Arena in the Bercy area, close to the 11th arrondissement where the series of terrorist attacks killed 130 people.
Prime Minister David Cameron has revealed he will "make the case" for Britain to join its allies in tackling the so-called Islamic State militant group in Syria in the House of Commons on Thursday.
To date, Britain's efforts have focused solely on Iraq - but Mr Cameron told the House of Commons that they had to recognise their enemy did not respect the same national borders.
David Cameron has revealed he will "make the case" for Britain to join its allies in tackling Islamic State in Syria, instead of just Iraq.Read the full story ›
The sister of one of the suicide bombers who attacked the Bataclan during the Paris attacks has posted a tribute to him online.
Samy Amimour's sister posted the tribute on Instagram alongside pictures of herself with Samy when they were children.
The message reads: "Each blessed day, I miss everything about you.
"I didn't want to admit it to myself but I resemble you more and more - be it your smile, your laugh, your look, your mannerisms, your way of hiding what you are feeling or even more your generosity.
"Today is a special day because it's the first day of the rest of your life.
"I love you and I will love you forever my brother, my twin, my blood, my life. I love you my Samy."
George Osborne has made it clear the government will only call a vote on UK military intervention in Syria when it is "confident" it has enough support to win the vote but uncertainty surrounds how MPs from other party's may vote.
The question now is whether or not the Labour party will let its members have a "free vote" over whether to bomb Syria.
ITV Political Correspondent Carl Dinnen reports: