Brief: Security analysts warn Israel faces narrowing window to formulate comprehensive Iran policy as Washington pursues renewed diplomatic engagement with Tehran.

Israel faces an urgent strategic imperative to develop a comprehensive long-term approach to counter Iran's nuclear ambitions before a potential U.S.-brokered agreement with Tehran constrains Jerusalem's options, according to a new strategic analysis.

The assessment comes as the United States signals renewed interest in diplomatic engagement with Iran, raising concerns among Israeli defense officials that any agreement could limit Israel's freedom of action against the Islamic Republic's nuclear program and regional aggression.

Israeli security experts have long warned that international agreements with Iran have historically failed to address the regime's broader destabilizing activities across the Middle East, including its support for terrorist proxies such as Hezbollah in Lebanon, Hamas in Gaza, and various militias in Syria, Iraq, and Yemen.

The analysis emphasizes that Israel cannot afford to remain reactive to developments in U.S.-Iran negotiations. Instead, Jerusalem must proactively establish clear strategic objectives, military capabilities, and diplomatic frameworks that will remain viable regardless of any international deal.

Key elements of such a strategy would include maintaining and upgrading Israel's independent strike capabilities against Iranian nuclear facilities, strengthening regional partnerships with Sunni Arab states that share concerns about Iranian expansionism, and ensuring that any diplomatic framework includes enforceable provisions against Iran's ballistic missile development and regional proxy networks.

The timing is critical as the Biden administration has indicated openness to re-engaging with Iran on nuclear matters, potentially reviving elements of the 2015 Joint Comprehensive Plan of Action that Israel strongly opposed. That agreement, from which the Trump administration withdrew in 2018, provided Iran with sanctions relief while imposing temporary restrictions on its nuclear program that Israeli officials deemed insufficient.

Israeli officials have repeatedly stated that the nation reserves the right to act independently to prevent Iran from acquiring nuclear weapons, regardless of international agreements. However, a formal U.S.-Iran deal could create diplomatic complications for unilateral Israeli action.

The strategic challenge for Israel is compounded by Iran's continued uranium enrichment activities, which have accelerated since the collapse of the previous agreement. Iran now possesses significantly more enriched uranium and more advanced centrifuges than it did in 2015, shortening the potential timeline to weapons-grade material if Tehran chose to pursue that path.