'Yes Sir, I Will' was the fifth and penultimate album released in March 1983 by the anarcho-punk band, Crass. The album was essentially a virulent attack on then prime minister, Margaret Thatcher, and her government in the aftermath of the Falklands War and was set nearly wholly over a raging, free-form improvised backing provided by the group's musicians. Remastered by Alex Gordon at Abbey Road Studios.