Gaza Strip southern Rafah Crossing into Egypt. The eastern Karni Crossing used for cargo, closed down in 2011. Israel controls the Gaza Strip's northern borders, as well as its territorial waters and airspace. Egypt controls Gaza Strip's southern border, under an agreement between it and Israel. Neither Israel or Egypt permits free travel from Gaza as both borders are heavily militarily fortified. "Egypt maintains a strict blockade on Gaza in order to isolate Hamas from Islamist insurgents in the Sinai." In February 2005, the Knesset approved a unilateral disengagement plan and began removing Israeli settlers from the Gaza Strip in 2005. All
Gaza Strip Israel as the occupying power in Gaza under the traditional law of occupation," but that some legal theories might downplay the significance of the lack of an Israeli presence on the ground, and that Israel still continues to exercise some control over Gaza in parallel with the Palestinian Authority. Shany wrote that "in order to identify the ultimate power of government in Gaza one should engage in a comparative analysis of the degree of effective control exercised by the two competing sources of authority." Some analysts have argued that the Gaza Strip can be considered a "de facto" independent state,