Helicopters are deployed to ensure top security during 12th National Party Congress. (Source: VNA)

Hummer H2 armed armored vehicles are used for the special events. (Source: VNA)

Bulletproof cars (Source: VNA)

Armored vehicles equipped with ladders. (Source: VNA)

Tanks with air wheels (Source: VNA)

Command vehicles (Source: VNA)

VNA