The Trump administration intensifies economic pressure on Iran, targeting nations like the UAE and China that facilitate trade, while Iran threatens to block oil exports. Simultaneously, a trade war with Canada escalates after the U.S. imposes 50% tariffs, prompting Canada to vow dollar-for-dollar retaliation. Experts question the efficacy of sanctions, noting they empower hardliners and devastate ordinary Iranians facing hyperinflation and shortages.