Dogs can die of bloat within several hours. Even with treatment, as many as 25-33% of dogs with GDV die. The gastric dilatation is one part of the condition and the volvulus or torsion is the second part. In bloat (dilatation), due to a number of different and sometimes unknown reasons, the stomach fills up with air and puts pressure on the other organs and diaphragm. The pressure on the diaphragm makes it difficult for the dog to breathe.
The tunnel systems were of great importance to the Viet Cong in their resistance to American forces, and played a major role in North Vietnam winning the war. The Cu Chi tunnels were built over a period of 25 years that began sometime in the late 1940s during the war against the French.
North Vietnam used a supply line (Ho Chi Minh Trail) running down the mountain valleys of eastern Laos into Cambodia and South Vietnam, particularly after the U.S.âSouth Vietnamese incursion into Cambodia in 1970 stopped supplies via Cambodian seaports. An agreement reached in 1973 revived the coalition government. The Communist Pathet Lao seized complete power in 1975, installing Souphanouvong as president and Kaysone Phomvihane as prime minister. Since then, other parties and political groups have been moribund and most of their leaders have fled the country.