遭遇戰是指交戰雙方處於行軍狀態時突然戰鬥。遭遇戰還可以分為預期遭遇戰鬥和不預期遭遇戰鬥。由於此時雙方彼此不了解，很難偵察，而且也沒有作戰計劃和部署，這時就需要軍事長官指揮更迅速、更機敏、更果決。[1][2] 非遭遇戰的情況則是一方預先佔領陣地，然後等待對方前來進攻。[3]
參考文獻
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