This week on Sitrep with Kate Gerbeau and Christopher Lee:

Defence Minister Tobias Ellwood explains why Brexit defence planning is the number one priority at the Ministry of Defence.

Professor Paul Rogers explains the INF treaty and why President Trump is warning the US may pull out.

The new Commander of British Forces in the Falklands, Brigadier Nick Sawyer, gives his first interview and tells Gini Carlin about his plans to improve training there.

RAF Marham is now running on Biofuel - so how does that work?

And new details about work carried out by the Pentagon's top secret UFO research programme with former MOD UFO man Nick Pope.