Some israeli political groups are in favour of a greater Israel similar to the time of King David who went to war with his neighbours, expanding Israel’s borders, including parts of Jordan, Syria’s Golan heights, Egypt’s Sinai peninsula and Philistia or modern day Gaza.
The philistines were known as sea people who fought Egypt but were defeated and settled in a coastal region of modern day Israel. They are said to have been originally from greek islands in the Aegean sea but were deported to modern day Iraq diring the reign of Nebuchadnezzar II of the neo-Babylonian empire. They may have been assimilated but it is possible that they returned to Gaza.
Israel have occupied and administered the majority of the Golan heights since the 6 day war in 1967 when they fought Egypt, Syria and Jordan, taking back Samaria and east Jerusalem from Jordan and annexing the Golan heights and Egypt’s Sinai peninsula, though they withdrew from the Sinai in 1982.