Accused person have the right to request a witness to APPEAR IN COURT.
The Sixth Amendment of the United States granted some rights to an accused person and these include the right of the person to know the person or group of persons who have brought accusations against him. The accused also have the right to request that his accusers should appear in court and this request must be granted by the accusers.
The two years prior to World War I in the region of the Balkans saw the rising of Serbian nationalistic Groups. Later came the assassination of the Archduke Ferdinand in the Balkan City of Sarajevo, main cause of the war.