the bush letter shows clearly that occupation ended. the israeli control of sea and airspace were a continuation of "existing agreements" between israel and the pa pending future agreements, i..e., a peace accord. furthermore, neither a sea blockade, nor a siege, have anything to do with "occupation," a totally different legal regime and concept.
U.S. sanctions Russia's state-owned arms exporter Rosoboronexport (Reuters)
from the article: Netanyahu: Security blockade on Gaza will only get stronger