The US Department of Defense sent real-time satellite and sensor data to Canadian authorities to quickly identify new fires as the nation endures one of its most destructive early wildfire seasons.
The US has already dispatched more than 600 firefighters to Canada to help battle the flames.
President Joe Biden, who has linked wildfires to climate change, said US officials were monitoring air quality and aviation delays.
"Starting today, DOD personnel will analyze and share real-time data derived from US satellites and sensors and convey it via a cooperative agreement between the US National Interagency Fire Center and the Canadian Interagency Forest Fire Centre," US National Security Council spokesperson Adam Hodge said in a statement.
He said the Biden Administration was also deploying additional US Department of the Interior (DOI), USDA Forest Service (USFS), and state wildland firefighting personnel and equipment to Canada.
Canada is suffering through its most destructive start to wildfire season, with about 4.8 million hectares (48,000 square kilometres) already burned, an area larger than the Netherlands.
South Korea's Constitutional Court on Friday decided to oust President Yoon Suk Yeol, upholding parliament's impeachment motion over his short-lived imposition of martial law last year that sparked the country's worst political crisis in decades.
At least seven migrants have died, including one boy, one girl and two women, after their boat sank off the Greek island of Lesbos, Greece's coastguard said on Thursday.
The death toll from Myanmar's devastating earthquake has surpassed 3,000, with hundreds more missing, as forecasts of unseasonal rain presented a new challenge for rescue and aid workers trying to reach people in a country riven by civil war.
Russian forces unleashed an hour-long barrage of drones on Kharkiv, Ukraine's second city, late on Wednesday, triggering a number of fires but causing no casualties in the second such attack in the course of the day, the regional governor said.
Variable parking fees will come into effect in Dubai on Thursday, with premium rates of AED 6 an hour marked for "busy zones near public transport, shopping destinations and business districts".