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.
At least 5 were killed and 35 others injured when a bomber detonated an explosive inside a mosque in Maiduguri, the capital of Nigeria's Borno state, during evening prayers, police said.
A helicopter has crashed on Tanzania's Mount Kilimanjaro, killing five people, the civil aviation authority said on Thursday, while local media reported that the aircraft was on a medical rescue mission.
Fourteen countries including Britain, Canada, and Germany have condemned the Israeli security cabinet's approval of 19 new settlements in the occupied West Bank on Wednesday, saying they violated international law and risked fuelling instability.
The US Justice Department has found more than a million more documents potentially tied to convicted American financier Jeffrey Epstein, delaying a full release for weeks while officials redact details to protect victims, the Department of Justice said on Wednesday.