On March 16, local time on March 15, US President Trump tweeted on his social media "Real Social" that he had ordered the US military to take "decisive and powerful" military action against the Houthis. Trump tweeted on social media on the same day that the US military is attacking the leaders of the Houthis, military bases and air defense systems. US officials said that the military operation will last for several days, which will be the most important military operation after the start of Trump's second term, and it is also to send a warning signal to Iran. At present, there is no response from Iran. According to US officials told Reuters on the 15th local time, the US strike against the Houthis will last for days or even weeks.