Hanoi, Aug. 5 -- Politburo member and Permanent member of the Party Central Committee's Secretariat Tran Cam Tu on August 5 called for stronger efforts to renew thinking and improve the effectiveness of Party diplomacy and people-to-people diplomacy, contributing more to the country's rapid and sustainable development. Speaking at a plenary session on Party and people-to-people diplomacy held in Hanoi as part of the 33rd Diplomatic Conference, Tu stressed that Vietnam's diplomacy has made important contributions throughout different historical periods, helping maintain a peaceful and stable environment, safeguard national independence, sovereignty, unity and territorial integrity, mobilise external resources for development, and enhance t...