Israeli government is convinced Coming_to_believe that Iran is interested in creating Creating territorial contiguity from Iran to the Mediterranean and in transferring Military_operation military forces – including naval vessels , fighter planes and thousands of troops – to permanent bases in Syria and is trying to `` Lebanonize '' Syria and take over Military_operation using Using Shi'ite militias , as it had done with Hezbollah in Lebanon .

Approximately thirty minutes into the flight , the hijackers forcibly breached Attack the cockpit and overpowered the pilot and first officer , allowing Preventing_or_letting lead hijacker and trained pilot Marwan al-Shehhi to take over Change_of_leadership the controls Control .

This was aggravated Cause_change_of_position_on_a_scale by the Captain 's decision to take over Getting control Control without understanding Know the situation and subsequent miscommunication between the Captain and the First Officer .