飞机和坦克是第一次世界大战中出现的新兵器,而最早拥有坦克并用于战场的国家是英国。坦克出现之初,由于有装甲防护,一般的步枪和机枪怎么也不能打穿,德军当时因尚无有效兵器对抗而受到英军坦克的沉重打击。 然而,德国兵工厂很快就设计、制造出了反坦克兵器,这就是毛瑟公司的反坦克步枪。该枪有效制止了初期坦克的攻击。因此,当美军与德军交战时,派遣到法国战线的美陆军部队,面对德国的反坦克步枪心有余悸。1918年4月,美国派遣军向国防部递交了“应紧急开发、装备类似德军大口径反坦克步枪”的报告,报告中还补充写上“作为反坦克兵器,大口径机 Planes and tanks were the new weapons that emerged in World War I, while the first country to own a tank and use it on the battlefield was the United Kingdom. The beginning of the tank, due to armored protection, the general rifle and machine gun how can not penetrate the German was because there is no effective weapon confrontation by the British tanks a heavy blow. However, the German Arsenal soon designed and manufactured anti-tank weapons, which is Mauser's anti-tank rifle. The gun effectively stopped the attack of the initial tank. Therefore, when the U.S. forces engaged the Germans, the U.S. Army troops dispatched to the French front continued to linger in the face of Germany's anti-tank rifles. In April 1918, the U.S. dispatched troops submitted to the Ministry of Defense a report entitled “Urgent Development and Equipment Similar to the Large-caliber Anti-tank Rifle of the German Army.” The report also supplemented the article "As Anti-tank Weapon, Large-caliber Machine