President Moon Jae-in of South Korea said Wednesday he will visit Pyongyang, capital of the Democratic People's Republic of Korea (DPRK), under right conditions.Moon was sworn in as the country's new president at a main hall of the parliamentary building, just hours after winning a landslide victory in the five-way presidential race.His presidential power came into force right after his election victory was confirmed by the national election commission as he has no usual transition period for the impeachment of his predecessor.In a televised inaugural speech, Moon said he will visit Pyongyang under right conditions and fly to Washington if necessary.The new leader vowed to sincerely consult with the United States and China to resolve the issue on the Terminal High Altitude Area Defense ( THAAD ) missile defense system.