Today's Situation Room:
Wolf Blitzer delivers the most important breaking news and political, international, and national security stories of the day. Tune to The Situation Room weekdays 5-7pm ET on CNN.
1,500 more U.S. troops bound for Iraq
President Obama is sending up to 1,500 more soldiers to Iraq to train Iraqi and Kurdish forces. Jim Sciutto reports.
Source: Obama writes to Iran about ISIS
President Obama sends a letter to Iran's Supreme Leader seeking cooperation against ISIS. Jim Sciutto reports.
ISIS executes 400 tribesmen in 48 hours
400 Sunni tribesmen who had taken up arms against ISIS, were killed in the last 48 hours according to tribal leaders. Jim Sciutto reports.
Terror on Canada's Parliament Hill
Jim Sciutto reports on the Ottawa shooting on Canada's Parliament Hill and what we know about the attack. Full story
Ex-counterterror chief: Threat imminent
The former head of U.S. counterterror operations sat down with Jim Sciutto and said the "imminent threat" posed by an al Qaeda offshoot in Syria hasn't lessened after a U.S. air campaign there. Full story
Former U.S. counterterror chief: 'Imminent threat' remains
Watch CNN's full interview with Matt Olsen during "The Situation Room," airing from 5-7 p.m. ET.
The former head of U.S. counterterror operations said Tuesday the "imminent threat" posed by an al Qaeda offshoot in Syria hasn't lessened after a U.S. air campaign there.
Speaking to CNN's Jim Sciutto, Matt Olsen said by his analysis the threat from the Khorasan group "is still in the same place as it was before" President Barack Obama ordered airstrikes against the terror operation last month. Full story
ISIS tightens up grip on key border town
As ISIS descends on Kobani near the Syria-Turkey border, Turkey says it won't go at it alone fighting ISIS on the ground.
Turkey: Border city may fall to ISIS
A city on the Turkey-Syria border may fall to ISIS, bus U.S. airstrikes continue to target ISIS' operating headquarters.
U.S. teen allegedly tries to join ISIS
Pamela Brown reports that an American was arrested at O'Hare International airport for allegedly trying to join ISIS. Full story
ISIS presses on despite of airstrikes
ISIS continues to hold territory as airstrikes continue in Syria. Jim Sciutto has the latest.
About this Show
The Situation Room with Wolf Blitzer is the command center for breaking news, politics and extraordinary reports from around the world. Tune in weeknights from 5-7pm ET on CNN.
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