Vietnam's Lam's visit to Beijing, his first overseas trip since he was appointed party chief early this month, signals a desire to strengthen ties as trade and investment grow and despite occasional clashes over boundaries in the South China Sea
Read MoreIn December, Xi offered grants and loans to help upgrade Vietnamese railways and the countries signed two memoranda of understanding (MoU) to boost railway cooperation
Read MoreDuring his visit, Putin will hold meetings with four Vietnamese leaders, including the President, the general secretary of the Central Committee of the country's Communist Party and others
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