11Vietnamese ambush
![Vietnamese ambush](https://i0.wp.com/factrepublic.com/wp-content/uploads/2018/07/15.Vietnam-mongol-invasion.jpg)
The Vietnamese once repelled a Mongol naval invasion of approximately 400 ships by filling a river with iron-tipped spikes and then luring the ships in at high tide. The fleet was trapped at low tide and overwhelmed by a Vietnamese ambush.
12Execution photograph
![Execution photograph](https://i0.wp.com/factrepublic.com/wp-content/uploads/2018/07/16.Eddie-Adams.jpg)
The famous Vietnam execution photograph taken by Eddie Adams (a soldier pointing a pistol at what appears to be a civilian victim) is actually the execution of a murderer by a police/security officer.
13My Lai Massacre
![My Lai Massacre](https://i0.wp.com/factrepublic.com/wp-content/uploads/2018/07/17.My-Lai-Massacre.jpg)
During the My Lai Massacre, a company of American soldiers killed over 500 civilians of My Lai on March 16, 1968. The incident was covered up for over a year and only one man was convicted.
14Caodism
![Caodism](https://i0.wp.com/factrepublic.com/wp-content/uploads/2018/07/18.Caodaism.jpg)
There is a Vietnamese religion named Caodism that worships Joan of Arc, Shakespeare, and Muhammad. At least 4 million followers exist in Vietnam alone.
15Cobra blood wine
![Cobra blood wine](https://i0.wp.com/factrepublic.com/wp-content/uploads/2018/07/19.Cobra-blood-wine.jpg)
In Vietnam, it is possible to order a cobra blood wine from restaurant menus. The waiter will take a live cobra, kill it on the spot, drain the blood into a shot glass of rice wine, and top it off with the cobra's still beating heart for you to gulp down.
16Vietnam War
![Vietnam War](https://i0.wp.com/factrepublic.com/wp-content/uploads/2018/07/20.Vietnam-War.jpg)
The Vietnam War lasted for 19 years, 5 months, 4 weeks and 1 day resulting in the deaths of 847,000–2,500,000 civilians, and 1,484,000–3,886,026 soldiers.
17Liquid landmine
![Liquid landmine](https://i0.wp.com/factrepublic.com/wp-content/uploads/2018/07/21.Liquid-land-mine.jpg)
A 'liquid landmine' was invented during the Vietnam War which was poured on the ground to form a mine, and best of all, it self-deactivated in 4 days, keeping kids safe from unfound mines.
18Vịnh Mốc tunnels
![Vịnh Mốc tunnels](https://i0.wp.com/factrepublic.com/wp-content/uploads/2018/07/22.V%E1%BB%8Bnh-M%E1%BB%91c-tunnels.jpg)
During the Vietnam War, Quang Tri natives moved their village into underground tunnels (Vịnh Mốc tunnels) 30 meters deep to escape US air strikes. The tunnels included 3 levels and were used for 6 years.
19Vietnam metro
![Vietnam metro](https://i0.wp.com/factrepublic.com/wp-content/uploads/2018/07/23.Vietnam-metro.jpg)
Vietnam is building its first 2 metro systems: one in Hanoi (capital) with Chinese funding/money and the other in Ho Chi Minh City (Saigon) with Japanese expertise. Hanoi's is progressing more quickly but has had multiple accidents, one deadly. HCM City's has had more delays but no accidents.
20Toan Trinh
![Toan Trinh](https://i0.wp.com/factrepublic.com/wp-content/uploads/2018/07/24.Toan-Trinh.jpg)
A Vietnamese ex-pat named Toan Trinh escaped before the fall of Saigon. He went on to have over 125 patents which included a variety of fabric and home-care products, which now include Bounce, Febreze and Downey Premium Care.