From the 14th to the 15th local time, US President Trump visited Qatar. According to Fox News, on the 15th local time, at a press conference, Trump announced that he would make a major upgrade to the F-35 and announced that he would name it "F-55". Unlike the existing F-35, the "F-55" will be equipped with a dual engine because he doesn't like one. In addition, Trump also said that he would upgrade the existing US fighter F-22 to a "super" F-22 fighter.

[Editor in charge: Wang Jinzhi]