The World in Brief from The Economist

Canada announced retaliatory tariffs on $20bn-worth of American goods, from September 8th, matching levies imposed by America after trade talks collapsed; Iran vowed to retaliate against America’s expanded sanctions regime, having warned that “not a single drop of oil” would leave the Gulf if the pressure continued.

Iran vowed to retaliate against America’s expanded sanctions regime, having earlier warned that “not a single drop of oil” would leave the Gulf if the pressure continued. Also, officials from Pakistan said “significant progress” was made to end the war in Iran, as they concluded a visit to Tehran.

Scott Bessent, America’s treasury secretary, threatened to expand secondary sanctions against Iran’s trading partners, targeting sectors such as digital assets, technology, gold, aviation and shipping.

Scott Bessent, America’s treasury secretary, threatened to expand secondary sanctions against Iran’s trading partners, targeting sectors such as digital assets, technology, gold, aviation and shipping; Mr Trump said America will raise tariffs on Canadian cars, automotive parts and steel to 50%, beginning on January 1st, further escalating a dispute after trade negotiations collapsed last week

Scott Bessent is expected to unveil new sanctions against Iran on Monday. Also, Volodymyr Zelensky said that holding wartime elections would “destroy” his country by sowing division.

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.

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