Defense industry leaders have been preparing to meet with US President Trump at the White House later this week in what is expected to be a contentious discussion as concerns grow over the US supply of missiles, according to NBC, citing sources

The leaders of roughly seven defense companies are expected to be pressed by the president to find ways to swiftly increase their production of weaponry for the Pentagon, according to these people and one other person familiar with the upcoming meeting.  Deputy Defense Secretary Stephen Feinberg is also expected to attend, two of the people said.