Australia raises its terror threat level to high following concerns about militants returning from conflicts in Iraq and Syria.
A Department of Defense report presented to the United States Congress estimates at 499 the number of civilian deaths in US military actions during the year 2017, with more than 450 reports remaining to be assessed. The casualties occurred in Syria, Iraq, Afghanistan and Yemen.
French authorities give up to 1000 migrants, mostly Syrians and Iraqis, until 8pm local time on 23 February to leave the Calais jungle camp. Those who refuse to leave will be forcibly removed by police.
The United States government implements new restrictions to its visa waiver program which now requires, with limited exceptions, European, Japanese and Australian travelers to the United States who either have been visitors in the last five years to or are dual-citizens of Iran, Iraq, Syria and Sudan to obtain a travel visa. The new visa policies were mandated by legislation which was passed, in the aftermath of November 2015 Paris attacks, by Congress on the grounds of national security.
The Syrian Observatory for Human Rights reports that at least 50 United States military instructors have deployed to northern Syria from Turkey and Iraq to train Kurdish forces ahead of an assault on ISIL's de facto capital Al-Raqqah.
France says it has carried out its first air-strikes against the Islamic State of Iraq and the Levant within Syria, destroying a training camp in the east of the country. Previously, France had only carried out air-strikes in Iraq with consent of the Iraqi government.