First Sentence

"More than a quarter of a century ago, President John F. Kennedy stood before the graduating class at West Point and summed up his view of the Communist global challenge in these words: This is another type of war, new in its intensity, ancient in its origin - war by guerrillas, subversives, insurgents, assassins, war by ambush instead of by combat; by infiltration instead of aggression, seeking victory by eroding and exhausting the enemy instead of engaging him."