BARACK OBAMA

At the U.N. summit, U.S. and Chinese leaders both indicated their countries would set ambitious emissions reduction targets ... eventually.

U.S. Ambassador Samantha Power cited Article 51 of the U.N. Charter to justify the airstrikes.

Militants already had moved their families to suburban locations and reportedly only went out under cover of darkness.

Without having to worry about ISIS, the Syrian regime can now turn its attention to other rebel groups threatening Bashar Assad's forces.

Six weeks of U.S. airstrikes in Iraq have failed to wipe out Islamic State group militants. What does that say about the Syria campaign?

The rules are intended to limit American companies from reaping tax benefits by merging with foreign companies.

House Speaker John Boehner said the airstrikes "must be part of a larger effort" to destroy ISIS.

The CDC gave its best- and worst-case scenarios for the Ebola virus outbreak, which may reach more than a million cases by early 2015.

"What we've got to do is understand this is a battle of moderation and modernity versus extremism and reactionary politics," Blair said.

Iranian President Hassan Rouhani, currently in New York for a U.N. meeting, does not plan to meet with President Obama.

After overnight airstikes in Syria, Obama said the next step to combat ISIS will be equipping and training moderate Syrian opposition forces.

“We did not request the regime’s permission,” Jen Psaki, spokeswoman for the U.S. State Department said Tuesday.

The U.S. and its Arab allies began strikes at around 8:30 p.m. EDT Monday.

The U.S. and five Middle East allies hit ISIS targets in Syria Monday night.

U.S. Sens. Marco Rubio and Saxby Chambliss commended the president for launching airstrikes against ISIS in Syria.

At least 50 people were killed in the airstrikes, which targeted various militant groups across Syria, including ISIS and the Nusra Front.

The U.S. government warned the Syrian regime prior to launching airstrikes on ISIS strongholds in the country.

The U.S., along with some of its Arab allies, began bombing the stronghold of the Islamic State group in Syria early Tuesday morning.

British journalist John Cantlie appears to narrate the second video in the Islamic State group's propaganda "lecture series."

About 100 Americans have joined Islamic State group abroad, the Obama administration announced on Monday.

Some reports said Turkey made a deal with ISIS that involved helping the militants in Syria.