A barbed-wire fence stretched off far to either side. A Union flag twisted in a gust of wind, and soldiers strode in and out of a squat guard's hut in the middle of the road. Through the hut, and under a row of floodlights, I walked towards a long line of drab, low-rise brick buildings. It was the summer of 2017, and on this military base nestled among the hills of Berkshire, I was visiting a part of the British Army unlike any other. They call it the 77thBrigade. They are the troops fighting Britain's information wars.

"If everybody is thinking alike then somebody isn't thinking," was written in foot-high letters across a whiteboard in one of the main atriums of the base. Over to one side, there was a suite full of large, electronic sketch pads and multi-screened desktops loaded with digital editing software. The men and women of the 77th knew how to set up cameras, record sound, edit videos. Plucked from across the military, they were proficient in graphic design, social media advertising, and data analytics. Some may have taken the army's course in Defence Media Operations, and almost half were reservists from civvy street, with full time jobs in marketing or consumer research.

From office to office, I found a different part of the Brigade busy at work. One room was focussed on understanding audiences: the makeup, demographics and habits of the people they wanted to reach. Another was more analytical, focussing on creating "attitude and sentiment awareness" from large sets of social media data. Another was full of officers producing video and audio content. Elsewhere, teams of intelligence specialists were closely analysing how messages were being received and discussing how to make them more resonant.