How do you say “coast guard” in Vietnamese?

Vietnamese words for “coast guard”

• tuần duyênListennoun
  Hanoi [twən˨˩ zwiən˧˧] · Saigon [t⁽ʷ⁾əŋ˨˩ j⁽ʷ⁾iəŋ˧˧]tuần falling duyên level

  coast guard

  for “coast guard” meaning: The organisation or officer enforcing maritime law and policing the seas within territorial waters.

• cảnh sát biểnListennoun
  Hanoi [kajŋ̟˧˩ saːt̚˧˦ ʔɓiən˧˩] · Saigon [kan˨˩˦ ʂaːk̚˦˥ ʔɓiəŋ˨˩˦]cảnh dipping sát rising biển dipping

  coast guard

  for “coast guard” meaning: The organisation or officer enforcing maritime law and policing the seas within territorial waters.