Latest in Defence – video roundup of the month’s breaking stories

Bluefin Robotics has completed deep-water testing of a specialised unmanned underwater vehicle (UUV), known as Submarine Hold at Risk (SHARK). Developed within DARPA's Distributed Agile Submarine Hunting (DASH) programme, the project aims to use scalable and affordable distributed technology systems to meet anti-submarine warfare (ASW) surveillance needs.

The question of whether or not the UK will renew Trident is one of the most pressing issues in warfare today. When Britain acquired its first submarine-based nuclear deterrent in 1963, those in power probably gave little thought to the controversy it would create 50 years later.

The statistics raise the question of whether Afghanistan security forces can protect the country's people after coalition forces have left.