Pulse Briefing: US-Iran war tenth day, Strait Hormuz shipping collapse, Houthi Saudi blockade - Tuesday, July 21, 2026

The US-Iran war enters its tenth day with three US troops killed and nearly one hundred injured as a second tanker is abandoned in the Strait of Hormuz in twenty-four hours. Houthis announce naval blockade of Saudi Red Sea ports threatening a second critical oil chokepoint. Trump slaps fifty percent tariffs on Canada effective immediately, with hints at broader action on sixty-plus countries. 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.