Magos built several military structures for the Hungarian Defence Force between the two World Wars to the satisfaction of the Supreme Command. That included the barracks in Rétság and Pétervására and the fortresses of the Árpád Line in the Carpathian mountains near Kőrösmező (today: Jasyna, Ukraine). Because of his social sensitivity and generous financial support, he was recognized throughout the city. This generosity was demonstrated by young intellectuals who were employed in his companies; one of whom was , a prominent painter and conductor.