Why the huge hike in defense spending? That's the 54-billion dollar question ahead of Donald Trump's first speech to a joint session of Congress. The new US president ran as the nominee of a Republican party that had mostly been against big spending ever since the Iraq war blew up the national budget. How will his plans go down with Tea Party supporters, and what exactly are his plans?
Produced by Alessandro XENOS, Yi SONG and Laure FOURQUET.