11 Liaison [loth January', 1340] WHEN one sees described in the books of, for example, General Spears, that Saint- Simon of liaison, the relations between the French and British High Commands from 1914 to 1917, and compares them with the supple harmony of 1939, the long, painful quarrel of the old days seems like an evil dream. There is a group of men to whom this success is very largely due. They are the agents of the Mission Francaise de Liaison. They are officers, -both com- missioned and non-commissioned, and privates who are attached to the various British units. They speak English, of course, but it would be a great mistake to regard them merely as interpreters. The liaison agent is, above all, a soldier and a combatant who, by his knowledge of the two languages, has been called upon to act as a connecting link at every point of contact between the two armies. At head- quarters, the liaison officer ensures that orders are transmitted correctly. If French and English are working in the same anti-tank ditch, where the cross-section must be the same throughout and the 83