September 23, 2014 6:18 PM

U.S.: Strikes on Islamic State, Khorasan in Syria first step of a years-long campaign

U.S.-led airstrikes in Syria are likely to last “for years,” a senior Pentagon official said Tuesday, as the United States began to assess the impact of three waves of aerial assaults launched in the early morning hours that targeted both Islamic State installations in eastern Syria and facilities housing a shadowy al Qaida group further west.

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