 The 4th Group has responsibility for the 3rd, 6th, 7th and 8th battalions, with a total of about 800 soldiers.On 21 June 2010, an announcement was made that the military intends to rename psychological operations, or PSYOP, to Military Information Support Operations.The decision, made a few days earlier by Admiral Eric Olson, Commander, United States Special Operations Command and Army's Chief of Staff General George Casey, was propagated through a memo dated 23 June 2010.