Complex sentence: Tanner, 19 November 1992 Reuters reported erroneously that forty-one children had been massacred in Vukovar by Croatian soldiers; although the claim was retracted a day later, it was used by the Serbian media to justify military action against Croatia.
Split into simpler sentences: Tanner, 19 November 1992 Reuters erroneously reported that 41 children had been massacred in Vukovar by Croatian soldiers. Although the claim was retracted a day later, it was used by the Serbian media to justify military action against Croatia.