As US president Donald Trump and first lady Melania start their UK tour at Windsor Castle, we discuss what the government hopes to gain from the royal and military pageantry.

The widening global conflict at the US diverts South Korean missile defences to the Middle East
33:22

With promises of a short war, how likely is a quick collapse or popular uprising in Iran?
34:58

As oil prices pass $100 a barrel, the G7 holds off releasing emergency stockpiles
41:01