On the islands and islets of the Truong Sa (Spratly) Archipelago, off the coast of Khanh Hoa province, lighthouses stand steadfastly amid the wind, rain, and harsh weather to guide ships, ensure maritime security, and assert Vietnam’s position and sovereignty.

In addition to ensuring maritime safety in the surrounding territorial waters, lighthouses on islands of Truong Sa (Spratly) archipelago in Truong Sa district of the south central province of Khanh Hoa, have also affirmed Vietnam's sovereignty over seas and islands.

The Vietnam Post has protested against China’s recent issuance of a collection of postage stamps featuring five lighthouses it has built on Vietnam’s Truong Sa (Spratly) archipelago.

Vietnam once again requests China respect its sovereignty and international law, abide by the Declaration on the Conduct of Parties in the East Sea (DOC) and immediately stop wrongful actions.