CV

    Maj. Gen. (res.) Tamir Hayman is the Executive Director of the Institute for National Security Studies (INSS). Prior to joining INSS, Maj. Gen. (res.) Hayman was Chief of the IDF Intelligence Directorate from 2018-2021. During his 34 years of IDF service, Maj. Gen. (res.) Hayman held a wide range of command positions in the ground forces including operational combat experience in the security zone in Lebanon and in the Palestinian arena.

    Maj. Gen. (res.) Hayman joined the IDF General Staff in 2015, and served as commander of the National Defense College, while also acting as commander of the Northern Corps. His period of service in Intelligence was characterized by ongoing tension in the Palestinian arena, Gaza; and intense struggles aimed at limiting Iranian entrenchment in Syria and dealing with the Iranian challenge emerging throughout the Shia axis.

    Maj. Gen. (res.) Hayman holds a Bachelor’s degree in political science and economics, and a Master’s degree from the National Defense College.

    Tamir  Hayman
    Tamir Hayman
    Executive Director of INSS
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    Special Publication
    The "New" National Security Concept: Conceptualization and Questions for Discussion
    Does the security concept that took shape informally after October 7 reflect a fundamental change in the identity of the state?
    12 October, 2026
    Special Publication
    Israel’s National Security Balance
    A comparative analysis of Israel’s situation on the eve of October 7 and after three years of war – what has changed in its national strength, conflict arenas, and the national security balance.
    7 October, 2026
    Policy Papers
    A “Traffic Light” Model for Implementing the Board of Peace Framework in the Gaza Strip: Policy Recommendations for Israel
    How can the Board of Peace plan for the future of the Gaza Strip be implemented in a way that does not jeopardize Israel’s security?
    26 September, 2026
    Policy Papers
    “Operation Roaring Lion”: Summary of the First Phase
    “Operation Roaring Lion,” the war against Iran and its proxies, has not yet reached its conclusion. Although the final outcome remains unclear and the current situation may soon shift, the campaign’s distinctive characteristics allow for an interim assessment. This is the most extensive war fought in the Middle East since the Second Gulf War, and the first in which Israel is fighting as an active partner in a coalition with the United States. While its global implications have yet to fully emerge, it is already clear that the war carries significant implications for the Gulf States, the global energy market, Israel’s international standing, and great-power competition.
    17 May, 2026
    Policy Papers
    Principles for an Israeli Strategy to Address the Iranian Nuclear Threat at the End of the War
    Although we are currently in the midst of a war and do not yet know how it will end, the US negotiations initiative—which may bring the campaign to an end—requires a clear definition of Israel’s interest regarding the Iranian nuclear project. The conclusion of Operation Roaring Lion will place Israel and the international community before a new strategic reality vis-à-vis Iran. The regime in Tehran, if it survives the war, may—after experiencing systemic trauma and damage to its senior leadership—adopt a national security doctrine that relies on nuclear weapons as its sole existential deterrent capability. Under these circumstances, it is essential to ensure that Iran retains no nuclear capability that could serve as a foundation for a military nuclear program. This paper argues that previous models of “risk management” (such as the JCPOA, the Joint Comprehensive Plan of Action) are no longer relevant. Therefore, Israel must insist on the complete dismantling of Iran’s uranium enrichment infrastructure and relevant technological capabilities as a necessary condition for ending the war, whether by diplomatic or military means.
    31 March, 2026
    Strategic Assessment
    Israel and the Palestinian Dilemma: Strengthening the Palestinian Authority or Containing Hamas
    In the reality of the zero-sum game between Hamas and the Palestinian Authority (PA), a strong Hamas and a strong PA cannot coexist. The weakness of the PA alongside a strengthened Hamas, compounded by the erosion of deterrence against Hezbollah and Iran and the increased likelihood of a multi-front conflict, poses a strategic dilemma for Israel. Israel must define its strategic goal vis-à-vis the Palestinian arena, and consider whether there is any value to a formative military move against Hamas that is not part of a broader political plan. Weakened military capabilities would significantly reduce the challenge Hamas poses to the PA that accelerates its weakening, and remove an obstacle to effective moves to strengthen the PA. A weakened Hamas would also loosen the Gordian knot between the various arenas that Hamas seeks to tighten, and presumably also strengthen Israeli deterrence in the region. Under the existing political conditions, the current Israeli government is unlikely to agree on the need to strengthen the PA, or at least stop weakening it. Therefore, the government does not face a strategic dilemma on taking proactive steps to strengthen the PA, even though the PA’s weakness harms Israeli interests: a move of this magnitude can only be led by a national unity government with broad public backing. At the same time, the status of the Palestinian Authority is so shaky and problematic that it is doubtful it can be restored under the existing conditions.