the northern part of Bosnia-Herzegovina
"The travelers crossed the border into Bosnia, settling first in the historic cities of its northern region."
a mountainous republic of south-central Europe; formerly part of the Ottoman Empire and then a part of Yugoslavia; voted for independence in 1992 but the mostly Serbian army of Yugoslavia refused to accept the vote and began ethnic cleansing in order to rid Bosnia of its Croats and Muslims
"The conflict in this mountainous republic erupted after it voted for independence from Yugoslavia, prompting a brutal campaign by the mostly Serbian army to ethnically cleanse Bosniaks and Croats."
The northern three-fourths of the country of Bosnia and Herzegovina, as a geographic and historical entity, not an administrative unit.
"The region known historically as Bosnia has long been defined by its distinct cultural identity separate from the rest of modern-day Croatia."
The word Bosnia comes directly from the name of the Bosna River. The region took its English name by traveling through local usage to describe the area surrounding this waterway.