President Obama issued a proposal to Congress today seeking authorization for a three-year military operation that would ramp up the United States' fight against Islamic State forces in Syria and Iraq, primarily through "a systematic and sustained campaign of airstrikes."

Kayla Mueller, the 26-year-old American held hostage by ISIS, was confirmed dead this week after ISIS operatives reportedly emailed her family a photo.

On Tuesday, people around the world were able to watch Islamist militants burn a man alive as easily as they could see Rihanna and Kanye's new music video. The face of the victim, Jordanian pilot Muath al-Kaseasbeh, was plastered across Facebook and CNN—and here on Gawker. The moments before his demise became ubiquitous. And it was made possible by one of the most sophisticated propaganda machines ever created.

The Islamic State claims that retaliatory airstrikes from Jordan have killed an American woman being held hostage by the group, according to the New York Times—while Jordanian officials are strenuously denying ISIS' claims, calling the release "just another PR stunt."

In apparent retaliation for video released this week depicting ISIS militants burning a Jordanian hostage alive, Jordan executed two convicted terrorist prisoners just before dawn Wednesday.

ISIS has released video of Jordanian pilot Moaz al-Kasasbeh being burned alive. The brutal killing comes less than a week after a deal between ISIS and Jordan fell through because ISIS could not show proof of life for the 24-year-old lieutenant.

After a proposed prisoner swap failed to materialize this week, ISIS released a gruesome video on Saturday purporting to show the beheading of captured Japanese journalist Kenji Goto.

A pair of Islamic State fighters attributed the militant group's recent withdrawal from Kobani to U.S.-led airstrikes, The Guardian reports. ISIS threatened to overrun the Syrian border-city as recently as October.

The Jordanian government announced Wednesday that they have agreed to release prisoner Sajida al-Rishawi in exchange for the release of Moaz al-Kasasbeh, the 24-year-old lieutenant captured by ISIS last month. Al-Rishawi has been imprisoned since 2005 for her involvement in the al Qaeda attack on Amman that left 60 people dead.

During an interview on ABC Sunday, White House chief of staff Denis McDonough apparently dropped the first name of the last American hostage held by ISIS—a woman whose name was kept secret for almost a year-and-a-half.

On Saturday morning, ISIS militants released a new video which purportedly shows the decapitated body of "security contractor" Haruna Yukawa, one of two kidnapped Japanese nationals the Islamic State demanded a $200 million ransom for earlier this week.

Two Japanese hostages were unveiled by ISIS this morning in a video demanding a $200 million ransom: A journalist named Kenji Goto, and "security contractor" named Haruna Yukawa. But Yukawa is less a private mercenary than a war tourist—one who traveled to Syria in the wake of a serious mental breakdown.

In a new video purportedly released by ISIS, a masked militant threatens to behead two Japanese hostages—identified in the clip as Kenji Goto and Haruna Yukawa—within 72 hours if Japan does not pay a $200 million ransom.

Amedy Coulibaly, who took fourteen hostages and killed four in a kosher supermarket before he was shot and killed by French special forces on Friday, pledges allegiance to the Islamic State in a video released today on what is reportedly an official ISIS forum.

ISIS released the latest in a series of propaganda videos featuring British journalist John Cantlie today, this one shot in Mosul in the style of a news report.

The New York Post decided that it was a good idea to report that members of ISIS may have been infected with Ebola. In other news, Andy Borowitz has been hired at the New York Post. (Haha, no, kidding. Can you imagine, though?)

Employees at the Albuquerque Journal are still trying to figure out how ISIS propaganda threatening local residents got posted on the paper's website Thursday.

On Wednesday, ISIS militants in Syria shot down a F-16 fighter jet from the U.S.-led coalition and captured its Jordanian pilot.

Four months after beheading American journalist James Foley, ISIS is ransoming his remains for $1 million, according to a new report by BuzzFeed.

The Lebanese military claims to have detained the wife and child of ISIS leader Abu Bakr al-Baghdadi. The two were reportedly arrested more than a week ago as they tried to cross into Lebanon from Syria; the wife is being held for questioning at the Lebanese defense ministry.