The U.S. launched air strikes on Iran for a second consecutive day. And, the World Cup kicks off today in Mexico City, where tensions threaten to disrupt events.

In the 9th century, Muhammad ibn Musa al-Kharizmi helped solidify the concept of algorithms in mathematics and popularized algebra and the use of the zero.

A U.N. report finds the number of people uprooted by conflicts around the world has fallen and the number of refugees returning home is reaching record numbers. But some haven't returned by choice.

The London-based rights group says the Israeli government is deliberately trying to annex the Palestinian territory.

Protesters in Northern Ireland set small fires and hurled bricks and bottles at the police during a second night of violence over a stabbing in Belfast. The incident sparked anti-immigrant violence.

The latest threat comes after a second day of intensified strikes between the U.S and Iran, pushing the Middle East closer to the resumption of a full-scale war.

Ukraine relies on robotic warfare to punch above its weight on the battlefield, including shifting frontline duties from soldiers to land drones.

A World Cup dream denied — Somali referee Omar Artan receives a hero's welcome at home after being blocked from entering the United States and taking part in the World Cup.

The drill on Wednesday marked the first time the U.S.-supplied HIMARS system has been fired into the Taiwan Strait.

The U.S. and Iran have exchanged strikes after a helicopter was downed Monday near the Strait of Hormuz. And, House Republicans have passed a bill to fund ICE and Border Patrol through Trump's term.