In the late 1970s the policy was used for the common cause of economic reform. From there the Party expanded the scope of its work internationally during the reform era, and again following the 1989 Tiananmen Square protests. The department includes a bureau tasked with handling Hong Kong, Macau, Taiwan, and overseas affairs, and articulates the importance of using overseas Chinese populations to promote unification. It played an important role in building support for "One country, two systems" in Hong Kong during the 1980s and 1990s, operating under the name of the "Coordination Department." The UFWD has been critically described as serving to co-opt non-Communist community leaders outside China, and "using them to neutralize Party critics," sometimes coercively.