Complex sentence: The Kaiser was most unwilling to abdicate, instead advocating bizarre plans of making an alliance with Britain against the United States in a desperate bid to keep his throne, and had to be told repeatedly by Groener to abdicate with Hindenburg silently nodding his head in support.
Split into simpler sentences: The Kaiser was most unwilling to abdicate, instead advocating bizarre plans of making an alliance with Britain against the United States in a desperate bid to keep his throne. He had to be told repeatedly by Groener to abdicate, with Hindenburg silently nodding his head in support.