Phnom Penh, Feb. 6 -- Party General Secretary To Lam and the high-ranking delegation of Vietnam left Phnom Penh on February 6 evening, concluding the state visit to Cambodia, where he co-chaired the high-level meeting between the Political Bureau of the Communist Party of Vietnam Central Committee and the Standing Board of the Cambodian People's Party Central Committee, along with the meeting among the leaders of the three ruling parties of Vietnam, Cambodia, and Laos. During the trip, General Secretary To Lam met with Samdech Techo Hun Sen; paid a courtesy call to Queen Mother Norodom Monineath Sihanouk; and laid wreaths at the Independence Monument, the Memorial to late King Norodom Sihanouk, and the Cambodia - Vietnam Friendship Monume...