Vientiane, April 22 -- Lao Minister of Foreign Affairs Thongsavanh Phomvihane has underscored the extreme significance of the state visit to Laos by Vietnamese President Luong Cuong to the two countries' robust relations. In an interview granted to the Vietnam News Agency on the threshold of the visit from April 24 to 25, the Lao official stressed that the trip, to be made at the invitation of General Secretary of the Lao People's Revolutionary Party Central Committee and President of Laos Thongloun Sisoulith and the first by Cuong as the State leader of Vietnam, will create new momentum for and substantially contribute to the great friendship between the two countries, making it develop in a deeper and more substantive and effective fash...