The new dynasty was more nationalist, friendlier to Russia and less friendly to Austria-Hungary. Over the next decade, disputes between Serbia and its neighbors erupted, as Serbia moved to build its power and gradually reclaim its 14th-century empire. These conflicts included a customs dispute with Austria-Hungary beginning in 1906 (commonly referred to as the "Pig War"); the Bosnian crisis of 1908–1909, in which Serbia assumed an attitude of protest over Austria-Hungary's annexation of Bosnia-Herzegovina (ending in Serbian acquiescence without compensation in March 1909); and finally the two Balkan Wars of 1912–1913, in which Serbia acquired Macedonia and Kosovo from the Ottoman Empire and drove out Bulgaria.