It happened in the beginning of this year in Taiwan. A soldier was died when he was being trained. He was not a volunter navy soldier. Evey soldier should have had swimming skills in marine corps, but the soldier was really terrified of water. In spite of his fear, he had to obey his officers and overcame himself.
The soldier had been required to sink into the water for 30 seconds and swim 25 meters in the swimming pool. He had tried hard as he can but his officers pretended that the soldier attempted to give up, so they forced him to sink into water only 20 seconds. It was too strict for the beginner to have overpressure when they learn how to swim. He was cring for help and had said "please help me". Howevr, the officers did not help him but pressed his head into the water more than three times. After that, the soldier sank into the water more than 15 seconds. The officers thoutht