On September 13, 1988 Dukakis visited the General Dynamics Land Systems plant in Sterling Heights, Michigan to take part in a photo op in an M1 Abrams tank. The Prime Minister of the United Kingdom, Margaret Thatcher, had been photographed in a similar situation in 1986, riding in a Challenger tank while wearing a scarf. Compared with Dukakis' results, Thatcher's picture was very successful and helped her reelection prospects. Footage of Dukakis was used in television ads by the Bush campaign, as evidence that Dukakis would not make a good commander-in-chief, and "Dukakis in the tank" remains shorthand for backfired public relations outings. Although he had served in the United States Army, Dukakis was widely mocked by his opponents for what they characterized as martial posturing and a silly image.