Complex sentence: In 117 AD, the Iazyges and the Roxolani invaded Lower Pannonia and Lower Moesia, respectively; the war was probably brought on by difficulties in communication due to the location of Dacia between them.
Split into simpler sentences: In 117 AD, the Iazyges and the Roxolani invaded Lower Pannonia and Lower Moesia, respectively. The war was probably brought on by difficulties in communication due to the location of Dacia between them.