Secretary of State John Kerry

Meeting with envoys from other countries that joined the fight against the so-called Islamic State, U.S. Secretary of State John Kerry said their commitment will be measured in years.

A police officer injured in this morning's attack died late Tuesday. Of the others killed by the assailants, three were U.S. citizens.

The agreement of the 21-member group, including the U.S. and Canada, would establish an informal information sharing network to track and detain corrupt officials.

It's been 35 years since the storming of the U.S. Embassy in Tehran triggered a 444-day hostage crisis. Today saw more cries of "Down with America," plus some interesting demands from the crowd.

Representatives from more than 20 countries have gathered in the French capital to form a coalition to defeat the insurgency.

The secretary of state's visit to Baghdad comes ahead of President Obama's speech tonight to outline a plan to combat the militant group.