This term is used in policies of marine insurance, in the clause relating to “arrests, restraints, and detainments.” The last two words are construed as equivalents, each meaning the effect of superior force operating directly on the vessel. Schmidt v. Insurance Co., 1 Johns. (N. Y.) 262, 3 Am. Dec. 319; Bradlie v. Insurance Co., 12 Pet. 402, 9 L. Ed. 1123; Simpson v. Insurance Co., Dud. Law (S. C.) 242.