Iran blocks the Strait of Hormuz: the fragile truce has collapsed
On June 20, 2026, the Khatam al-Anbiya Central Command—Iran's highest joint headquarters—announced the closure of the Strait of Hormuz to shipping. The official reason cited violations of the Islamabad Memorandum by the United States and Israel. This decision fundamentally contradicts recent de-escalation efforts and once again creates colossal risks for global oil transit, just as markets had already priced in reduced tensions.
Statement from the Military Command
Iran's highest headquarters described the blockade as a "first step" and warned of further measures if, in their words, aggression continues. The conflict escalated following strikes by the United States and Israel in late February 2026, as well as earlier restrictions on passage through the strait. Now, Tehran openly states that Israel's actions in Lebanon and violations of the ceasefire terms render the memorandum invalid.
Critical Artery of Global Energy
Approximately 21 million barrels of oil and petroleum products are transported through the Strait of Hormuz daily—about 20% of global liquid hydrocarbon consumption and a quarter of all seaborne oil trade. In addition to oil, major export flows of liquefied natural gas from Qatar and the UAE pass through here. Alternative routes for Gulf countries are virtually nonexistent, and any disruption at this chokepoint instantly triggers price volatility.
The Fate of the Islamabad Memorandum
The 14-point memorandum, agreed upon around June 17, 2026, stipulated that Iran would make maximum efforts to ensure the safe passage of commercial vessels during the first 60 days. In return, the United States was to lift the naval blockade of Iranian ports. Shipping had begun to recover, and energy prices were trending downward. However, Tehran now effectively annuls this agreement, citing ongoing Israeli actions.
Notably, U.S. Vice President JD Vance has already denied official confirmation of the blockade, suggesting the opposite. Yet the very fact of the Iranian command's statement creates a powerful informational backdrop that could refocus attention on the issue of supply shortages amid a potential prolonged shock.
Cryptalist Analysis: The oil market, which had just begun to price in hopes of a détente, will now face a new wave of uncertainty. For the cryptocurrency sector, this is a classic "flight to safe assets" scenario—Bitcoin and gold may see a short-term boost, but the long-term trend will depend on how real Iran's actions in the strait prove to be.