Military escorts to protect tankers in the Strait of Hormuz are not a sustainable solution, according to the International Maritime Organisation (IMO).“It reduces the risk, but the risk is still there,” IMO Secretary General Arsenio Dominguez told the Financial Times. He said that a military deployment was “not a long-term or sustainable solution”.US President Donald Trump has called for an international naval operation off the Iranian coast to secure oil shipments, saying at the weekend that...