Pulse Briefing: Strait Hormuz shipping collapse, Operation Economic Outcast Iran, US-Canada trade war collapse - Tuesday, August 25, 2026

A ship was disabled by attack in the Strait of Hormuz as tanker transits hit a three-month low amid Iranian threats of fines and detention. Treasury launched Operation Economic Outcast with sweeping Iran sanctions targeting shipping and oil trade, prompting China to warn of retaliation. US-Canada trade talks collapsed with Trump threatening 50% New Year's tariffs on vehicles while Carney prepares retaliatory measures. The Pulse Briefing is a daily preparedness-intelligence briefing on the national and geopolitical developments that matter for prepared families: energy, supply chains, security, health, and the economy.