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In addition, As Zhang Xiaobo said, On the front line at that time, Wearing or not wearing a helmet is a "choice", Because Vietnam is located in Southeast Asia, The climate is hot and humid, Helmets are heavy and airtight, Wearing it is very easy to cause heatstroke, Particularly in fast maneuvers, This is the easiest way to do strenuous activities such as running. Therefore, in order for the troops to fight more efficiently, There would be no mandatory order for everyone to wear a helmet, If you don't want to wear it, you can choose to wear a cloth cap with eaves. So in the vast majority of relevant historical photos, Among our troops participating in the war, The highest percentage of helmets is worn by artillery, It is mainly used to defend the fragments of enemy artillery and various hard objects brought up by explosions in artillery warfare. Even some border militiamen wore helmets in large numbers, On the contrary, the impact is at the forefront, Infantry units carrying out a large number of mobile combat missions are rarely worn, Investigate its reason, It is for the infantry troops to carry out large-scale interspersed operations frequently. Exercise is enormous, It is really inconvenient to wear helmets, This approach has both advantages and disadvantages, It is not good to judge right or wrong here, but when facing such a horrible "killer bee" on the ground on 149, it is regrettable and regrettable that the heavy casualties caused by the low wearing rate of helmets have to be said. If they had worn helmets instead of military caps like Zhang Xiaobo, the casualties caused by the sting attack of "killer bee" would have been much smaller.不然约翰·达顿是达顿家族的一家之长，坐拥着美国最大的牧场，与牧场毗邻的有美国首个国家公园、印第安人保留地以及土地开发商买下的地皮。在一次因牲畜误入印第安人保留地引起的争端中，不幸的意外伤亡事件发生，一场涉及多方的争端在蒙大拿州这片美丽的土地上拉开了序幕。清朝末年的香港，在上、中、西环有“镇三环”之称的帮办暗中勾结西环恶霸勾心虎，西环治安一时乌烟瘴气。警官马如龙（成龙）奉命接管西环后，迅速将勾心虎拘捕人狱，招来“镇三环”的怨恨。侠客文化和天启很不对头，每次天启出新书，侠客文化也会推出新书，和天启打擂。