HANOI: Vietnam wants to expand its international defence cooperation to build trust and prevent wars, its prime minister said on Thursday (Dec 19), and the United States said it was hopeful its defence industry could play a key role. In remarks to open Vietnam's second international arms fair , Prime Minister Pham Minh Chinh said the expo was "a message of peace, cooperation and development". The arms fair, which will run until Sunday, is being held at Gia Lam Airport in Hanoi, with nearly 250