Although the U.N. Security Council has approved the use of force to protect aid shipments to Bosnia-Herzegovina, no one has yet figured out precisely how to do it. U.N. forces in Sarajevo are caught in the middle -- a Ukrainian soldier was killed by a sniper last week -- and the major powers are reluctant to let their troops get involved.
When a British Hercules transport plane heading away from Sarajevo was tracked by ground-based radar, U.N. peacekeepers on the ground responded by closing the airport. It reopened two days later but closed briefly on Saturday after mortar fire hit the...