Beijing has recently built several military bunkers on some atolls, with the possibility of an outbreak of World War 3.
The possibility of war between the US and China has recently been raised by members of the Association of South East Asian Nations (ASEAN).
ASEAN countries include Vietnam, the Philippines, Malaysia, Singapore, Thailand, Myanmar, Cambodia, Laos and Brunei.
During a meeting with ASEAN leaders, US Secretary of State Mike Pompeo urged nations to cut ties with Chinese companies linked to the creation of islands in the disputed territory.
Mr. Pompeo said: “Just don’t speak, but act.”
He urged regional governments to “rethink trade with over-owned companies threatening ASEAN coastal states in the South China Sea.”
The top US diplomat said: “Don’t let the Chinese Communist Party run on us and our people.”
Chinese Foreign Minister Wang Yi blamed the US for the growing tension and said they were the “biggest drivers” of militarization.
READ MORE: South China Sea: China ‘ready to use secret weapon’
Ms Retno said the increasing militarization of the South China Sea was worrisome but said it was the “political reality” she faced.
Vietnam’s Foreign Minister Pham Binh Minh also expressed concern about the region: “It has led to the loss of trust and confidence, increased tension and weakened peace, security and the rule of law in the region.” . “
In a joint statement with the other 10 ASEAN foreign ministers, he claimed that “good culture” should be nurtured.
The statement read: “[ASEAN has] A good culture, but we have to nurture it.
“We cannot assume that these values will last forever.”
Despite no claims on any part of the archipelago, the US has increased its forces in the contested territory in retaliation for Beijing’s presence.
Earlier this year, Mr. Pompeo had feared war in the region, urging nations to compete against China’s dominance.
Writing on Twitter, Mr. Pompeo stated: “The policy of the United States is clear: the South China Sea is not a maritime empire of China.
“If Beijing violates international law and independent nations do nothing, history shows that the CCP will simply take more territory.
“China Sea disputes should be resolved through international law.”