在托尔金（J. R. R. Tolkien）奇幻小说的中土大陆里，敌击剑格兰瑞（Glamdring）是精灵特刚（Turgon）在第一纪元铸造的一口剑。在之后的数千年，敌击剑一直不知所终，直至《哈比人历险记》时期，甘道夫（Gandalf）在食人妖的巢穴发现了敌击剑（同时发现刺针及兽咬剑）。甘道夫将敌击剑收为己用，在《魔戒》里，甘道夫也一直使用此剑，他在对抗炎魔的时候、亦是使用此剑。

敌击剑又名「破敌之物」，半兽人称敌击剑为「打剑」。敌击剑有「粉碎敌人（Foe Hammer）」之意，格兰瑞之名则来自精灵语，为「喧嚣的军队（din horde）」之意。

Middle-earth is the setting of much of J. R. R. Tolkien's legendarium. The term is equivalent to the term Midgard of Norse mythology, describing the human-inhabited world, i.e. the central continent of world of Tolkien's imagined mythological past. Tolkien's most widely read works, The Hobbit and The Lord of the Rings take place entirely in Middle-earth, and Middle-earth has also become a short-hand to refer to the legendarium or its "fictional-universe".