US President Donald Trump’s order for the US to attack Iranian gunboats is the latest sign that an asymmetrical war-fighting strategy is stymieing the world’s mightiest navy, with US aircraft and destroyers forced to track swarming speedboats in a vital energy waterway. “I have ordered the United States Navy to shoot and kill any boat, small boats though they may be,” Trump said Thursday in a social media post, claiming that those vessels are laying mines in the Strait of Hormuz. The target –...