World War II marked by 50 to 85 million fatalities, most of whom were civilians in the Soviet Union and China. It included massacres, the genocide of the Holocaust, strategic bombing, premeditated death from starvation and disease, and the only use of nuclear weapons in war. Japan, which aimed to dominate Asia and the Pacific, was at war with China by 1937, though neither side had declared war on the other. World War II is generally said to have begun on 1 September 1939, with the invasion of Poland by Germany and subsequent declarations on Germany by France and the United Kingdom. From
Scuba diving fatalities being deep or low on air. The drag caused by a buoyancy compensator inflated to offset the weight belt can contribute to exhaustion in divers attempting to swim to safety on the surface. The American Academy of Underwater Sciences reported in 1989 that half the cases of decompression sickness were related to loss of buoyancy control. When twin-bladder buoyancy compensators are used, confusion as to how much gas is in each bladder can lead to a delay in appropriate response, by which time control of the ascent may have already been lost. 90% of the fatalities did not ditch their