1) Asian river 2) Laosian waterway 3) Laosian river 4) River of Laos 5) River in Laos 6) River in Asia 7) River of Asia 8) South China Sea arm 9) Waterway in Asia 10) Waterway in Laos 11) Waterway of Laos 12) Waterway of Asia Found on https://www.crosswordclues.com/clue/gulf-of-tonkin
1) Asian river 2) Laosian waterway 3) Laosian river 4) River of Laos 5) River in Laos 6) River in Asia 7) River of Asia 8) South China Sea arm 9) Waterway in Asia 10) Waterway in Laos 11) Waterway of Laos 12) Waterway of Asia