Complex sentence: After Enver's 22nd July approach to Germany had been rejected, Kaiser Wilhelm II ordered that it be reconsidered, and renewed negotiations started on 28th July and involving Enver, Talaat, and Said Halim Pasha.
Split into simpler sentences: After Enver's 22nd July approach to Germany had been rejected, Kaiser Wilhelm II ordered that it be reconsidered. Renewed negotiations started on 28th July, involving Enver, Talaat, and Said Halim Pasha.