Education
In 1956 he completed the Academy of General Staff and in 1963 received a doctorate in Military History.
In 1956 he completed the Academy of General Staff and in 1963 received a doctorate in Military History.
Born in Iwanicze Nowe in Volhynia, Poland, now Ukraine. He habilitated in 1970 and became associate professor in 1973. He authored up to 120 historical and military publications.
Filar also organized a series of historical seminars: "Poland - Ukraine: difficult questions" (1996–2001).
He is currently the Vice-chairman of Volhynia County, World Union of Home Army.
During the Second World War he fought against the Germans in Volhynia in Operation Tempest, and defended Polish villages against the Ukrainian Insurgent Army.