Dunford: Better intel improving counter-ISIS airstrikes

US Secretary of Defense Ashton Carter(L) and Chairman of the Joint Chiefs of Staff Joseph Dunford hold a press briefing at the Pentagon in Washington, DC, March 25, 2016. The Islamic State group’s second in command has been killed in a US raid in Syria, Pentagon chief Ashton Carter confirmed March 25, 2016, in a move he said would hamper the operational ability of the jihadists. “The removal of this ISIL leader will hamper the ability for them to conduct operations inside and outside of Iraq and Syria,” Carter told reporters of the death of Abd ar-Rahman Mustafa al-Qaduli, referring to him as Haji Imam and saying he served as finance minister for the group. / AFP / SAUL LOEB (Photo credit should read SAUL LOEB/AFP/Getty Images)

Coalition airstrikes against the Islamic State group have grown more effective because intelligence has improved, as has training for US proxy forces in Iraq and Syria, the chairman of the Joint Chiefs of Staff said Tuesday.