An amphibious attack is a tactical operation that involves the use of both land and sea forces to launch a surprise assault on an enemy. Synonyms for this term include amphibious assault, amphibious landing, amphibious invasion, amphibious raid, amphibious strike, amphibious operation, amphibious incursion, and amphibious offensive. These terms are interchangeable and are often used in military jargon to describe similar types of operations where forces from two or more sides work in unison to achieve a common objective. Amphibious attacks have been used in several historical conflicts and continue to be an important aspect of military planning today.