North Korea on Saturday criticized Washington's alliance with Seoul as a facade to cover up a U.S. plan to occupy South Korea by force. "The United States is pretending to be a protector of South Korea ... but it is definitely an aggressor, an occupier," said a spokesman at the North's Committee for the Peaceful Reunification of the Fatherland. Washington has a "wicked intent to strengthen its colonial rule and militarist occupation of South Korea and to make South Korea a victim of the U.S. scheme to wage a war of aggression," the unidentified spokesman was quoted as saying by North Korea's official Korean Central News Agency.