Military Quotes - Page 115
Winston Churchill (2001). “The Wicked Wit of Winston Churchill”, Michael O'Mara Books
Winston Churchill (2012). “Churchill: The Power of Words”, p.515, Da Capo Press
Winston Churchill (1952). “War Speeches: From June 25, 1941 to September 6, 1943”
Air power is the most difficult of military force to measure or even express in precise terms.
Winston Churchill (1986). “The Gathering Storm”, p.100, Houghton Mifflin Harcourt
William James, Frederick Burkhardt, Fredson Bowers, Ignas K. Skrupskelis (1982). “Essays in Religion and Morality”, p.173, Harvard University Press