“The Face of Roman Battle”, Philip Sabin2000 (history)⁠:

Our perspectives on ancient history can sometimes be significantly affected by contributions from scholars of other disciplines.

An obvious example from the military field is Edward Luttwak’s1976 book on The Grand Strategy of the Roman Empire. Luttwak is a respected and insightful commentator on modern strategic issues, and his distinctive contribution was to analyze Roman military affairs in terms of modern concepts such as ‘armed suasion’ and the distinction between ‘power’ and ‘force’.

His book has prompted considerable debate among specialist ancient historians, and although much of this has been critical of his ideas (largely due to the alleged anachronism of applying them in the Roman context), there is no doubt that the injection of this new dimension has helped to influence subsequent thinking on Roman imperial defense.