Officials said Saturday that the National Police Agency has stepped up its counter-terrorism operations and public security surveillance ahead of U.S. President George W. Bush's visit to South Korea next week. The police said all command-level officers and 259 strategic units will be on stand-by for emergencies. It has ordered special surveillance of nearly 4,700 facilities across the country including World Cup stadiums, conference sites, foreign missions and arms storage sites. Bush is due to visit Seoul Tuesday through Thursday and his key itinerary includes giving a speech at a railway station close to the Demilitarized Zone, which is said to symbolize inter-Korean unification efforts. Many civilian groups are opposed to the visit and have accused Bush of fueling tension on the Korean Peninsula by branding the North as part of an "axis of evil." They also say Bush will try to pressure the South Korean government to buy U.S. company Boeing's model for its fighter jet procurement project. Police officials said they will bolster security at the U.S. Embassy, Boeing branch offices, U.S. firms and military installations to maintain order during protests.