The Structure of Israel’s Isolation Created by the US-Iran War-Ending MoU

After the conclusion of the U.S.-Iran war-ending MoU, the basic structure of the Middle East is expected to shift from escalation management to a war-termination management phase. This change goes beyond the end of the bilateral armed conflict between the United States and Iran, and is forming new structural pressure across the broader surrounding fronts encompassing Lebanon, Gaza, the Red Sea, and Hormuz.

In this process, Israel has faced a structure of relative isolation. Israel jointly carried out military operations against Iran with the United States, yet failed to secure the status of a direct party to the U.S.-Iran war-ending MoU, and the pressure for front stabilization accompanying this MoU is acting most strongly on Israel. In the case of the Gaza Strip, the humanitarian crisis, civilian casualties, and restrictions on access to relief supplies are emerging as issues of international criticism, while on the Lebanese front, demands for the cessation of hostilities with Hezbollah and the easing of tensions in southern Lebanon are being raised simultaneously. In other words, Israel was a core actor in the war-conduct phase, but in the war-termination management phase, it has moved into a position in which it must accept the constraints of the relevant agreement from outside the agreement system.

When the overall circumstances are considered, Israel’s diplomatic room for maneuver is assessed to be narrowing. The above pressure factors are directly colliding with Prime Minister Netanyahu’s political narrative, and Netanyahu is in a position where he cannot abandon either the image of a leader aligned with the Trump administration or the narrative of securing autonomy vis-à-vis the United States. This is highly likely to manifest in conflicts of varying scale between the two countries going forward.

  • After the United States and Iran concluded the war-ending MoU, the regional order shifted from escalation prevention to a system of ceasefire, implementation, and follow-up negotiation management. Under this structure, Israel’s continued conduct of military operations entails a heavier diplomatic burden than before.
  • Israel’s strategic moves on the Lebanese and Gaza fronts directly affect the implementation environment of the U.S.-Iran MoU. Therefore, Israel is placed in a position where it is structurally constrained by an agreement that it did not control.
  • In the Gaza Strip, issues such as civilian casualties, restrictions on humanitarian access, expansion of Israeli-controlled areas, and Hamas disarmament continue to be raised even after the ceasefire. This acts as a factor that accumulates moral and normative burdens in international public opinion regardless of Israel’s independent security logic.
  • As the presence of Israeli forces in southern Lebanon and Hezbollah’s justification for resistance collide, the Lebanese front has emerged as the foremost flashpoint after the U.S.-Iran MoU. While the United States and the international community are urging front stabilization, Israel is insisting on maintaining a security buffer zone.
  • Netanyahu needs the political asset of being a leader who coordinates with the Trump administration. However, the more Trump drives war termination and front stabilization, the more Netanyahu must maintain a posture of cooperation with the United States while also demonstrating a stance that does not compromise under U.S. pressure. This is a dual narrative that is realistically difficult to reconcile.
  • As the humanitarian crisis in the Gaza Strip, strikes in Lebanon, the issue of Israeli presence in southern Lebanon, and controversies over ceasefire violations become linked, the risk is increasing that Israel will gradually be branded as a “spoiler” of regional stabilization.

After the U.S.-Iran war-ending MoU, Israel’s diplomatic position has become more constrained, and as the United States and Iran have entered a war-termination management phase, Israel’s military operations in Gaza and Lebanon have faced a situation in which they can no longer be defined only as independent security actions.

The Gaza front is generating normative pressure, while the Lebanese front is generating pressure for ceasefire implementation, and international public opinion is linking the two fronts into a single critical frame. Under this structure, Netanyahu faces the task of maintaining in parallel the narrative of emphasizing the alliance line with the Trump administration and the narrative of being a leader who is free from subordination to the United States.

Therefore, the likelihood is high that structural friction between the United States and Israel will recur going forward, and it is clear that the Israeli government has encountered a major diplomatic test. The more Netanyahu advocates military autonomy, the more international isolation deepens, while conversely, the more he conforms to the U.S. war-termination management line, the more he is placed in an unfavorable dilemma in which the domestic hard right and his own political narrative are shaken.

Endnotes

  1. Associated Press, “Israel Seized More Land from Neighbors Since 2023 Than It Has in Decades,” Associated Press, June 18, 2026.

  2. Axios, “U.S. Claims Israel-Hezbollah Ceasefire Back On,” Axios, June 19, 2026.

  3. Oxfam, “Remarks Delivered by Bushra Khalidi, Oxfam’s Global Humanitarian Policy Lead, at the UN Security Council Emergency Session on Gaza,” press release, June 18, 2026.

  4. Reuters, “Death Toll from Israeli Fire in Gaza Since Ceasefire Passes 1,000, Says Health Ministry,” Reuters, June 18, 2026.

  5. Reuters, “Israel, Hezbollah Agree to Ceasefire in Lebanon, U.S. Official Says,” Reuters, June 19, 2026.

  6. Reuters, “US-Iran Deal Redraws the Middle East: Iran Gains, Rivals Alarmed,” Reuters, June 18, 2026.

  7. The Guardian, “Middle East Crisis: Trump Says US Expects ‘Complete Ceasefire on All Fronts, Including Lebanon, Hezbollah and Israel’ – As It Happened,” The Guardian, June 18, 2026.

  8. The Times of Israel, “Poll: 71% of Israelis Don’t Trust Trump to Look Out for Them in Iran Deal; Just 11% Say Israel Won War,” The Times of Israel, June 20, 2026.