The Warsaw Ghetto is not a bad example for the LEGAL PRINCIPLE of an occupied place like Gaza, although the type of the Occupier`s behavior was very different. The Germans were afraid to enter the ghetto and catch some disease; they were normally stationed outside place and this way were able to impose their control over the ghetto, by threat and by being able to enter it at will. Gaza is controlled on every side by Israel, including the border with Egypt, airspace, and sea lanes. The border with Egypt is controlled thru agreement with the EU which is willing to inspect that Israeli regulations are followed by the PA border control. In addition there is videotape. When Israel wants the border closed, it closes. In recent times it closed for a few weeks while thousands of Palestinians were waiting on the Egyptian side, and some even died waiting. Israel is the master of the border and of Gaza. That is why the Swiss government also believes Gaza is still occupied.
Abbas to urge UN to pressure Israel to permit entrance to Palestinian refugees from Syria (Haaretz)
from the article: Ignoring the chaos