British theorist Sir [[Julian Corbett]] (1854-1922), was second only to Mahan as an influential exponent of sea power during the late 19th and early 20th centuries. Mahan emphasized the need for concentration of forces and the decisive battle. In contrast, Corbett advised that protection of shipping lanes and local control in decisive areas was more important. While Mahan overstated the value of colonies to national strength, he overlooked "guerre de course" (attacks on merchant ships) and technological innovation. Corbett erred both by ignoring convoy warfare and in advocating a passive strategy out of keeping with the aggressive naval tradition of his British constituency.<ref>J. J. Widen, "Sir Julian Corbett and the Theoretical Study of War." ''Journal of Strategic Studies'' 2007 30(1): 109-127. Issn: 0140-2390 Fulltext: [[Ebsco]]</ref>
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British theorist Sir Julian Corbett (1854-1922), was second only to Mahan as an influential exponent of sea power during the late 19th and early 20th centuries. Mahan emphasized the need for concentration of forces and the decisive battle. In contrast, Corbett advised that protection of shipping lanes and local control in decisive areas was more important. While Mahan overstated the value of colonies to national strength, he overlooked "guerre de course" (attacks on merchant ships) and technological innovation. Corbett erred both by ignoring convoy warfare and in advocating a passive strategy out of keeping with the aggressive naval tradition of his British constituency.<ref>J. J. Widen, "Sir Julian Corbett and the Theoretical Study of War." ''Journal of Strategic Studies'' 2007 30(1): 109-127. Issn: 0140-2390 Fulltext: [[Ebsco]]</ref>