The Army, facing another tough recruiting season, launched a $200 million-a-year advertising campaign this month and unveiled a new slogan: "Army Strong." The campaign's core message is that the Army builds not only physical but also mental and emotional strength in recruits, bonding them into a powerful, close-knit team. "There's strong, and then there's Army strong," a deep male voice intones as martial music rises from a brass band in the background. The television ads, launched nationwide for Veterans Day along with Internet placements and other outreach, omit all but the most fleeting images related to the all-volunteer Army's biggest...