a laser-guided bomb and air-to-surface missile. On 3 October 2014, the RAF deployed two additional Tornado aircraft to bring its deployed fleet up to eight aircraft. During the same month, it was also confirmed that the Royal Navy was involved in anti-ISIL operations in a support role, with air defence destroyer providing escort to U.S. Navy aircraft carrier as she launched aircraft into Iraq and Syria. Nick Clegg, then Deputy Prime Minister, also disclosed during an interview that there was a nuclear attack submarine armed with Tomahawk cruise missiles deployed to the region. On 16 October 2014, the Ministry of Defence announced it would deploy MQ-9 Reaper drones to assist with surveillance, although, Defence Secretary Michael Fallon stated that the drones could also conduct airstrikes if required. The first Reaper drone strike occurred weeks later in Bayji, north of Baghdad, against a group of ISIL militants which had been laying improvised explosive devices. As of September 2015, a year after operations first began, more than 330 ISIL fighters had been killed by British airstrikes in Iraq, without any civilian casualties. In addition to operations over Iraq, the United Kingdom had also intervened in Syria by 21 October 2014, making it the first Western country, other than the United States, to do so. However, British aircraft were not permitted to carrying out airstrikes until Parliament had voted to give its authorization. Despite this, the Royal Air Force carried out a drone strike in Syria on 21 August 2015, against two UK-born ISIL fighters which had been plotting attacks against the United Kingdom. Prime Minister David Cameron insisted that it was a lawful act of self-defense. Since the authorization of airstrikes in Iraq, Prime Minister David Cameron had made persistent calls for airstrikes in Syria; however, he affirmed that no airstrikes would take place until after a vote in Parliament. On 2 December 2015, following the November 2015 Paris attacks and United Nations Security Council Resolution 2249, David Cameron opened a ten-hour debate in Parliament on Syrian airstrikes, which ended with a final vote. 397 MPs voted in favour of airstrikes, whilst 223 voted against. Airstrikes commenced two hours after the vote, taking place in eastern Syria against the ISIL-held Oman oilfield. Defence Secretary Michael Fallon also subsequently announced that the UK's "strike force" based in Cyprus would double, with the addition of six Eurofighter Typhoons and two Tornado GR4s. In addition