Hanoi, Oct. 19 -- General Secretary of the Communist Party of Vietnam Central Committee and President To Lam and his spouse Ngo Phuong Ly, together with King Frederik X and Queen Mary of Denmark, laid a wreath at the Monument for Denmark's International Effort Since 1948 (Danish Heroes' Memorial) in the Kastellet fortress in Copenhagen on October 19 morning (local time), as part of the former's state visit to the European country. The memorial pays tribute to those who have participated in, contributed to and sacrificed their lives while carrying out Denmark's international missions since 1948. At the memorial site, General Secretary and President Lam, and King Frederik X reviewed the guard of honour. Following the solemn wreath-laying ce...