President Donald Trump on Saturday posted an apparently AI-generated video depicting an army of buff, bequiffed and heavily-armed “Donald Ducks” patrolling the shores of “Lake America.”

The post came after Trump signed an executive order renaming Lake Ontario “Lake America” amid a bitter tariff war with Canada, a longtime U.S. ally and trading partner.

Set to the theme song from Hawaii Five-O, the 34-second clip shows a squadron of Canada geese marching near the Great Lake. The birds have human arms, carry assault rifles and sport the president’s signature blond pouf of hair.

The geese then fire their weapons into the air as fireworks erupt over the skyline of a nearby city — which appears to resemble Toronto.

Earlier this week, Trump announced that the U.S. was giving “serious consideration” to rebranding Lake Ontario, which straddles the U.S.-Canada border. He also posted a TikTok video showing himself using a Sharpie to mark up a map of the lake. “We’re gonna make a little change; we’re gonna call it something different than Lake Ontario,” the 80-year-old president said in the clip.

Any doubt that the effort was simply trolling evaporated Thursday, when Trump signed an executive order directing federal agencies to refer to Lake Ontario as “Lake America” in all official documents and records. The move echoed his similar effort last year to rebrand the Gulf of Mexico as the “Gulf of America.”

Although the president can direct how the federal government refers to geographic features, he cannot compel foreign nations, private entities or even U.S. states to follow his lead.

Canadian Prime Minister Mark Carney responded to the missive in a Thursday post on X.

“The name Lake Ontario comes from the Wendat word Ontari’io, which, appropriately, means ‘the lake is beautiful, the lake is big,’” he wrote. “The name is more than 400 years old, predating both the Confederation of Canada and the Declaration of Independence of the United States of America.”

“We know that America is changing. Their trading relationships, their foreign policies, their national monuments, their hydronyms,” he added. “Canadians also know that naming reality means calling it Lake Ontario – then, now and always.”

Relations between the U.S. and Canada have deteriorated since Trump took office, including as a result of his repeated suggestion that Canada should become the “51st state.” Tensions escalated further this week over trade.

On August 22, the U.S. imposed 50 percent tariffs on about $20 billion worth of Canadian exports after last-minute talks between Ottawa and Washington broke down. The Trump administration has accused Canada of discriminating against U.S. businesses.

Carney, who has denied Trump’s accusations, likened the levies to an act of war. He retaliated with tariffs of up to 50 percent on a range of U.S. goods.

The trade war has also spilled into a war of words. This week, Trump singled out Ontario Premier Doug Ford in a Truth Social post, describing him as a blustering “flunky” who needs to “fall in line.”

At a news conference, Ford responded by calling Trump a “dictator,” a “bully” and the “king of bankruptcies.” He also told Trump to “kiss my a**.”