A disaster preparedness expert has issued a stark warning that the United States could face “total collapse” within six months if the war with Iran continues to choke global supply chains. Christopher Armitage, a US Air Force veteran and author writing on his Substack The Existentialist Republic, argues the economic shock triggered by the conflict is colliding with existing social vulnerabilities — potentially setting off a cascading national crisis. His central concern: a disruption few Americans are even tracking. A fertilizer choke point few saw coming Within 48 hours of US strikes on Iran, Tehran moved to restrict shipping through the Strait of Hormuz, one of the world’s most critical maritime arteries. The narrow waterway handles a vast share of global energy shipments — but it also carries roughly a third of the world’s fertilizer supplies. For farmers, timing is everything. Fertilizer shipments scheduled for spring planting are now stuck at sea, threatening harvests months down the line. No safety net for the food system Unlike oil, which can be released from the US Strategic Petroleum Reserve during crises, there is no equivalent stockpile for agricultural nutrients. If fertilizer prices spike or supplies vanish, farmers are forced to reduce application rates or switch crops entirely. The impact shows up later — in smaller harvests, tighter food supplies and higher grocery bills. According to Armitage, the warning signs are already flashing red. A fragile system under pressure The US food system was already under strain before the conflict escalated. Roughly 50 million Americans experienced food insecurity in 2025, including about 14 million children. Cuts to social safety net programmes, Armitage argues, have weakened the country’s ability to absorb another major shock. The result, he says, is a system with little margin for error. A countdown tied to the planting season For farmers, the clock is measured in weeks — not months. The spring planting window is now opening across much of the United States, yet ships carrying critical inputs remain stranded as the Hormuz blockade drags on. Armitage warns that if the disruption continues through the growing season, the economic and social consequences could spiral rapidly. His metaphor is blunt: a damaged ship, a fired maintenance crew, lifeboats burning — and the iceberg already dead ahead. US barreling towards 'total collapse' within six months if Iran war continues: expert
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