Complex sentence: In August 29, the first Turkish troops entered Ayvalik, martial law was declared and during the following days all adult males were arrested and sent to labor battalions to the interior of Anatolia, where most of them died.
Split into simpler sentences: In August 29, the first Turkish troops entered Ayvalik and martial law was declared. The following days all adult males were arrested and sent to labor battalions to the interior of Anatolia, where most of them died.