Have a think about which current affairs could have an influence on UK defence issues. No matter which issues you choose to focus on, make sure to actually do some reading up on the subject/s, and don't try to ad lib.
Thanks for the feedback, Do you's have any affairs specifically that I should prioritise studying? I've been looking at the trade dispute with Boeing and the Kurdish referendum etc, not sure if i'm wasting my time.
Another +1 for the Economist, also The Spectator and New Statesman are worth a look if only for the opinion pieces as opposed to raw news. When mush_lad was thinking about joining up, I'd encourage him to pick an opinion article, verbally summarise it, and then create an opposing viewpoint that was as factual as possible.
I'd also recommend some of the news apps for your phone - AlJezera and France24 will give a non-british view on world events, if only for variety. E.g The Qatar-Gulf crisis, the Rohingya refugee issue or Catalan independence.
It'll not be popular, but, The Daily Sport, and The Sunday Sport. They're famous for tits and bullshit, but in the past, several times, I have seen them print stories several days in advance of the mainstream media.