A Kerry letter to The Boston Globeexplaining the senator's position(s) on the war in Kosovo The most enduring lesson of Vietnam - seared into me as a soldier - is that when the United States decides to employ force, it must have a clear national interest and objective, commit to doing whatever it takes to achieve that objective, and do so with debate and ultimately the consent of the American people. No one can deny this nation's strong connection to the tragedy in Kosovo. We have committed 50 years and trillions of dollars protecting the security of Europe through the...