I'd wouldn't rush to get too too deep conspiracy on this as possibly related to the recent Trumpian communiques, seems pretty sure that Trump's tweets were pure incompetence. Though I wouldn't put it beyond him to be misinterpreting some bit from some crazy Breitbart story that was printed out for him long ago and stuck in his head....

More here along the same lines, he's just really losing it:

Qatar signs $12 billion deal to buy F-15 jets from U.S.

@ Reuters, June 14

Qatar's Ministry of Defense said on Wednesday the country signed a deal to buy F-15 fighter jets from the United States for $12 billion.

The deal was completed despite the Gulf country being criticized recently by U.S. President Donald Trump for supporting terrorism.

U.S. Defense Secretary Jim Mattis and representatives from Qatar were set to meet Wednesday to seal the agreement, a source familiar with the deal told Reuters. Bloomberg News reported the deal was for 36 jets.

The sale will increase security cooperation and interoperability between the U.S. and Qatar, the Pentagon said in an emailed statement on Wednesday.

Defense Secretary Mattis and Qatari Minister of State for Defense Affairs Khalid al-Attiyah also discussed the current state of operations against the ISIS and the importance of de-escalating tensions so all partners in the gulf region can focus on next steps in meeting common goals, the Pentagon added [....]