Force is never more operative than when it is known to exist but is not brandished.
Alfred Thayer Mahan
Neatly spaced amid the welter of bulldozers, cranes and sweating U.S. marines on Yellow Beach north of Beirut, Lebanon last week stood five green and white umbrellas boldly emblazoned SEVEN-UP. The umbrellas each sheltered a friendly Lebanese vendor with an iced soft-drink box packed with Seven-Up. They were spaced with such orderly precision because the marines' beachmaster decided in his second week ashore that the hordes of Lebanese pop salesmen needed as...