Hazem Qassem

Hazem Qassem is not mentioned in any of the provided news articles. Therefore, it's impossible to provide any information about who they are, why they are newsworthy, recent events related to them, or their current relevance based solely on the given text. The articles focus on Israeli attacks on Gaza, ceasefire violations, the role of Hamas, and the involvement of the US in peace efforts through President Trump's 'Board of Peace'. The articles highlight the ongoing violence and humanitarian crisis in Gaza, with numerous Palestinian casualties reported due to Israeli airstrikes. They also mention the retrieval of the final Israeli hostage's remains and the challenges in implementing the peace agreement.