The World in Brief from The Economist

Pakistan’s army chief, Asim Munir, will visit Tehran on Monday as his country continues to try to mediate an end to the war in Iran; Mark Carney, Canada’s prime minister, said his country would retaliate “dollar for dollar” against America’s new 50% tariffs, with its own levies taking effect on September 8th.

Mark Carney, Canada’s prime minister, said his country would retaliate “dollar for dollar” against America’s new 50% tariffs, with its own levies taking effect on September 8th; Vladimir Putin threatened to hit Ukraine’s “most sensitive economic sectors” after it attacked a warehouse run by Ozon, Russia’s second-largest online marketplace, and reportedly targeted a nearby oil refinery

Iran accused America of violating other countries’ sovereignty with new sanctions due to be announced on Monday

Iran accused America of violating other countries’ sovereignty with new sanctions due to be announced on Monday

America imposed a 50% tariff on some Canadian goods entering the country after the two countries failed to reach a deal; Masoud Pezeshkian, Iran’s president, said that now would be a good time to end the war with America, while his country was in a “position of power and dignity”

America’s Supreme Court allowed the construction of Mr Trump’s $400m White House ballroom project to continue, for now