Complex sentence: Two assigned British SIS agents had met supposed discontented German Army officers in the Dutch border town of Venlo following a series of covert meetings, these German Army officers communicated that they were plotting a "coup d'état" against Chancellor Adolf Hitler.
Split into simpler sentences: Two assigned British SIS agents had met supposed discontented German Army officers in the Dutch border town of Venlo. Following a series of covert meetings, these German Army officers communicated that they were plotting a "coup d'état" against Chancellor Adolf Hitler.