A poster portraying the “Second Patriotic War” as World War I was known in Russia. (Napoleon’s 1812 invasion was Russia’s first “patriotic war.”) Germany’s Kaiser Wilhelm II ...

Paul Fussell’s 50-year-old survey of trench warfare deserves a new generation of readers, our book critic writes.

Sun Tzu’s The Art of War is a renowned ancient Chinese military ... The principles of the world haven’t changed much despite the ever-changing makeup of our time. Here are five quotes from ...