British Prime Minister David Cameron pledged in Thursday's parliament for air strikes on the IS in Syria, pointing out that the United Kingdom can not "leave its security to other countries".

"I think we need to extend our military campaign on IS and Syria," he told the MPs.

"It is wrong for the United Kingdom to give its security to other countries and to expect air forces from other countries to take the burden and risk of an attack on the IS in Syria to stop terrorism here in Britain," he said.

The prime minister denied allegations that he would in this way make his target for terrorist attacks out of his country. He stressed to MPs that Britain is already the target of the IS and that the only way to resist it is to take action immediately.

"We need to take care of the IS in Syria, as we do in neighboring Iraq, to ​​face the threat that IS is present in the region and guarantee our security here," Cameron said. "The longer we allow the IS to become stronger in Syria, the greater the threat," he added.

He defended his position before the parliamentary commission for foreign affairs that London must embark on air strikes in Syria. At the beginning of November, the commission voted against the strike, estimating that London should focus on diplomatic efforts to restore peace there.

Since then, the situation has changed because of the attacks in Paris 13. of November caused fears in Britain that feared to become the next target of IS.