The U.S. Armed Forces and coalition partners have eradicated more than 20,000 targets in their air campaign against the Islamic State, most recently destroying a radio station in Afghanistan. Here is a look at some of the damage these strikes have caused in Iraq and Syria.
The air campaign, known as Operation Inherent Resolve, involves targeted strikes on militant and economic assets supporting the Islamic State, Sunni militants also identified as Daesh and by the acronyms ISIS and ISIL.
The U.S. Department of Defense reports the total cost of the 511 days of operations was $5.8 billion as of Dec. 31, an average of $11.4 million per day.
In January 2016, coalition airstrikes targeted IS finance distribution centers in an effort to disrupt and destroy their financial operations.
The Combined Joint Task Force says strikes against financial centers deny the militants millions of dollars that could be used to finance their operations and pay their fighters.
IS oil reserves are another asset the militants have used to finance their operations. Coalition airstrikes targeted their crude oil collection point near Deir Ezzor in Syria on Dec. 24 in an attempt to deal a further blow to their revenue sources.
An additional 11 strikes were conducted using fighters and remotely piloted aircraft. Coalition forces continued to hit the area, striking the main oil pump on Dec. 29.
Coalition forces also targeted IS oil transit, destroying 283 oil trucks near Al Hassakah and Deir Ezzor in Syria on Nov. 22. The strikes were in support of Operation Tidal Wave II, the larger effort to degrade the militants' oil revenue.
Tidal Wave II also included a strike against Abu Kamal, Syria.
In addition to revenue infrastructure and other supporting assets, the U.S.-led coalition has destroyed 6,221 IS fighting positions, which can include IS-occupied buildings. A strike hit a building near Ramadi in Iraq on Oct. 31. Eight buildings and 10 fighting positions were destroyed that day to help support ground-based Iraqi Security Forces.
The coalition hit an IS rocket launcher on Oct. 9.
Other weapon assets hit include an IS vehicle-borne improvised explosive device factory near Qayyarah, Iraq on Dec. 7.
Operation Inherent Resolve's kinetic operations began in August 2014 in response to militant aggression against government forces in Iraq and Syria.