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British Prime Minister David Cameron (2L) flanked by National Security Adviser Kim Darroch (1L) and British Ambassador to Indonesia Moazzam Malik (3L) delivers an address during a bilateral meeting with Indonesia's President Joko Widodo (not in picture) at the presidential palace in Jakarta on July 27, 2015. Cameron began a visit to Southeast Asia on July 27, looking to seal 1.2 billion USD in trade deals and push for greater cooperation in the fight against the Islamic State group. AFP PHOTO / ROMEO GACAD (Photo credit should read ROMEO GACAD/AFP/Getty Images)

British Prime Minister David Cameron (2L) flanked by National Security Adviser Kim Darroch (1L) and British Ambassador to Indonesia Moazzam Malik (3L)  delivers an address during a bilateral meeting with Indonesia's President Joko Widodo (not in picture) at the presidential palace in Jakarta on July 27, 2015. Cameron began a visit to Southeast Asia on July 27, looking to seal 1.2 billion USD in trade deals and push for greater cooperation in the fight against the Islamic State group.  AFP PHOTO / ROMEO GACAD        (Photo credit should read ROMEO GACAD/AFP/Getty Images)