Niccolò Machiavelli,
The Art of War — Book 5
(1675)
“ And you have to understand that when you march through enemy country, you face more and greater dangers than in undertaking an engagement. And therefore, when marching, a Captain ought to double his diligence, and the first thing he ought to do, is to have all the country through which he marches described and depicted, so that he will know the places, the numbers, the distances, the roads, the mountains, the rivers, the marshes, and all their characteristics. ”
