自由计划实施不到两天就被叫停，原来是沙特不让美使用基地和领空了。

https://www.nbcnews.com/politics/white-house/trumps-abrupt-u-turn-plan-re-open-strait-hormuz-came-backlash-allies-rcna343845 

WASHINGTON — President Donald Trump’s abrupt reversal on his plan to help ships go through the Strait of Hormuz came after a key Gulf ally suspended the U.S. military’s ability to use its bases and airspace to carry out the operation, according to two U.S. officials.