ARTICLE AD BOX
By Joel Guinto & Bui Thu
in Singapore and Bangkok
Vietnam has strongly protested against Australia's issuance of a coin with an image of the yellow flag of South Vietnam.
Vietnam said the coin defies positive trends in bilateral ties and urged Australia to halt its circulation.
Australia fought with the losing US-backed South during the Vietnam War, which ended with the nation unifying.
The limited edition two-dollar coin was issued to mark 50 years since Australia pulled out its forces from Vietnam.
The yellow flag in the coin design, contained in a ring, is based on ribbon colours awarded to Australian veterans.
"We regret and resolutely protest against the Royal Australian Mint's and Australia Post's releases and circulation of items containing the yellow flag with three stripes, the flag of a regime which is no longer in existence," said Pham Thu Hang, deputy spokesperson of Vietnam's foreign ministry.
The coin also features an image of the late Queen Elizabeth II on its obverse side, and a UH-1H helicopter on the reverse.
Vietnam lodged the protest as it concluded a five-day holiday to remember the end of the war.
The Royal Australian Mint could not be reached for comment, but it has previously said the coin aims to honour those who served and lost their lives. More than 520 Australians were killed in Vietnam between 1962 and 1975.
The yellow flag is a sensitive issue for modern-day Vietnam. In January last year, Vietnam's national television station aired a football match between Vietnam and Australia with a 10-minute delay as some Australian fans brought yellow-striped flags to the stadium.
In July 2018, a Vietnamese court sentenced three women to four years in prison on charges of spreading anti-state propaganda after they held up yellow flags in public.
However, Vietnam appeared to have overreacted to the commemorative coins, said Nguyen Van Tuan, a former refugee from South Vietnam who now teaches medicine at the University of New South Wales and University of Technology in Sydney.
He said it is common for some local governments in Australia to use the yellow flag since veterans from the former South Vietnam are entitled to benefits from the Australian government.
The yellow flag was also flown by so-called boat people like him who fled Vietnam by boat so that they would be recognised as refugees, he said.
"While the flag no longer represents any country, it remains a symbol of the Vietnamese community in Australia," he said.