This sounds an awful lot to me like one story used to deny the Holocaust: The Jews simply moved. Vacation time, don't you know?
Does not matter what it sounds to you - seems to me your problem,. The people from Kosovo arrived in thousands in Hamburg (my Hometown) and other cities, a lot of them are living now here. Some of them worked in my company. They moved after the bombing started.
The fight in Kosovo was was fought by the forces of Yugoslavia, which controlled Kosovo before the war, and the Kosovo Albanian rebel group known as the Kosovo Liberation Army (KLA) .Today you would call them "terrorists".
The KLA, initiated its first campaign in 1995 when it launched attacks targeting Serbian law enforcement in Kosovo, and in June 1996 the group claimed responsibility for acts of sabotage targeting Kosovo police stations. In 1997, the organization acquired a large amount of arms through weapons smuggling from Albania, following a rebellion which saw large numbers of weapons looted from the country's police and army posts. In 1998, KLA attacks targeting Yugoslav authorities in Kosovo resulted in an increased presence of Serb paramilitaries and regular forces who subsequently began pursuing a campaign of retribution targeting KLA sympathizers and political opponents in a drive which left 1,500 to 2,000 KLA combatants and civilians dead.After attempts at a diplomatic solution failed, NATO intervened, justifying the campaign in Kosovo as a "humanitarian war". This precipitated a mass expulsion of Kosovars by Serbs while Yugoslav forces continued to fight during the two month-long aerial bombardment of Yugoslavia.