With the US-flag merchant fleet shrinking and the Chinese-flag ballooned to massive proportions, two Hawaii Pacific University professors are warning that the US is ill-prepared to meet the threat of potential maritime coercion.

Coercive diplomacy expert Patrick Bratton and sea power historian Carl Schuster write in a report released Thursday that America’s over dependence on ships of other nations could make it vulnerable to China using its combined navy and shipping power to carry out “sea strangulation” against the US or its allies.

China’s