Anti-China activists place incense sticks into an urn during a rally marking the 42nd anniversary of the 1974 naval battle between China and then-South Vietnamese troops over the Paracel Islands, in front of the statue of Vietnamese King Ly Cong Uan in Hanoi on January 19, 2017. Both Vietnam and China claim full sovereignty over the Paracel Islands in South China Sea, which Beijing have controlled since 1974 after seizing them from the then-South Vietnam regime in a brief battle. HOANG DINH NAM / AFP