The Tet Offensive gave the North an important boost, even though it ultimately was a military failure. (Video YouTube/Simple History)The former enemies have gradually set aside their wartime differences, in part out of shared concern about China's growing military power and more assertive position in the South China Sea. Vietnam fought a border war with China in 1979, and bitterness runs deep. An obscure office, the Defense POW-MIA Accounting Agency, still directs efforts to find and identify remains of Americans killed in Vietnam. Mattis is the latest in a string of Pentagon chiefs who've visited Vietnam to expand security ties and address China's growing military power.

Source: Bangkok Post January 22, 2018 14:15 UTC