If not for the hostages, Israel would have flooded those tunnels with sea water four month ago and solved a major part of the problem immediately.
Article 147 of the 1949 Geneva Convention IV identifies hostage-taking as a “grave breach”, a status that imposes obligations to provide effective penal sanctions for the offense and to search for and prosecute offenders- (Article 146)
The ICJ should have made a final decision immediately after they were provided all the evidence of a genocidal attack on Israeli men, women, children and babies on Oct 7, and that Israel had a right to respond in a very aggressive manner until Hamas lays down their arms and released all the hostages.