Cameron is eager to launch strikes against Islamic State in Syria as soon as possible, believing that Britain can no longer rely on other countries for its security. However, his efforts to gain approval for the action in the House of Commons have caused further divisions within the Labour Party. Labour leader Jeremy Corbyn criticized Cameron for rushing into war and urged Labour lawmakers to reconsider their support for the government's military efforts in Syria. Despite this opposition, Cameron's cabinet has agreed on a motion to extend air strikes to Syria, in addition to targeting Iraq. He emphasized that the debate in parliament will be thorough and last 10-1/2 hours. When asked about the likelihood of securing a majority, he responded with "Let's wait and see." Cameron is almost certain to gain parliamentary approval as Corbyn has allowed his MPs to vote based on their own beliefs, breaking from the usual practice of leaders instructing their MPs on important votes. Reports suggest that approximately 50 Labour MPs will support the government, although Corbyn, a long-time anti-war activist, is hopeful that he can convince them to change their stance. Corbyn believes that Cameron's argument does not align with the demands of his party and is urging each MP to make their own decision on whether to involve British troops in another Middle East conflict without a clear plan. Many Britons are hesitant to engage in more expensive military operations in the Middle East following failed Western interventions in Iraq, Libya, and Afghanistan which did not bring stability and may have contributed to the emergence of militant groups like Islamic State. Despite concerns about the cost, British finance minister George Osborne estimated that extending air strikes into Syria would cost "low tens of millions of pounds". However, in the wake of Islamic State's involvement in the Paris attacks that killed 130 people, some members of parliament who were previously opposed to the air strikes now see them as necessary to protect Britain from similar attacks. Defence Secretary Michael Fallon emphasized the "urgent need" for Britain to conduct air strikes against Islamic State in Syria for the sake of national security during a parliamentary session on Tuesday.