Possible Clues:

• Petty Officer First Class (Retd) seeing scene of recent war
• Site of a protracted mid-1990s war
• Formerly part of Yugoslavia
• Sarajevo site
• European nation
• Country familiarly covered in mountains observed from the East
• !995 Canadian peace keeping locale
• Sarajevo's setting
• Where to find Sarajevo
• Its capital is Sarajevo