Sieges are an important aspect of modern military operations designed to isolate enemy forces physically and electronically. Sieges are a legitimate tactic of warfare. Generally speaking, they are permitted as long as the siege is not deliberately aimed at starving the local population. The sieging force has a qualified obligation to facilitate the delivery of food and medicine, but only as long as they can be reliably delivered without being diverted for use by the enemy military force. Since Israel imposed a siege on the Gaza Strip following the October 7 attack by Palestinian terrorists, it has facilitated the flow of food, water, and medicine into the territory, despite evidence that Hamas has diverted the aid for its own purposes.
A blockade is a military operation to prevent vessels from entering or leaving a coastal area, and sometimes including airfields, under the control of an enemy nation. Israel has imposed a naval blockade on the Gaza Strip since January 2009 in response to the launching of over 5,000 missiles and mortar bombs toward Israeli territory. Blockades are allowed for and regulated under international law. A United Nations panel of inquiry has stated that Israel’s blockade of the Gaza Strip “was imposed as a legitimate security measure… and its implementation complied with the requirements of international law.”