US President Donald J. Trump (R) with Polish President Andrzej Duda (L) during a joint press conference in the Rose Garden of the White House in Washington, DC, USA, 12 June 2019. Earlier President Trump and President Duda signed an agreement to increase military to military cooperation including the purchase of F-35 fighter jets by Poland and an increased US troop presence in Poland. <br /> Credit: Shawn Thew / Pool via CNP