Gunmen loyal to Bosnian Serb nationalist leader Radovan Karadzic conquered 70% of Bosnia with their arsenal of tanks, aircraft and howitzers bequeathed by the Yugoslav army.
Bosnia became a contested territory.
( z1 become :ARG1 ( z2 country :name ( z3 name :op "Bosnia" ) ) :ARG2 ( z4 territory :ARG2-of ( z5 contest ) ) )