Countries urge diplomacy as US-Israel war with Iran hits 100 days

International reactions to the war involving the United States, Israel and Iran have diverged over the past 100 days, with many governments urging de-escalation as energy markets tighten and broader economic uncertainty grows. The conflict began on February 28, 2026, and a fragile ceasefire has been in place since April 8, officials and analysts said.

Israel has continued military operations in Lebanon during that period, and the fighting there has killed more than 3,000 people, according to the source article.

European allies of the United States did not condemn the initial U.S.-Israeli strikes but also declined to join the war, while voicing opposition to regime change in Iran. Russia and China have also pushed back against the conflict, the source article said.

Across the Gulf, governments including Oman, Qatar and the United Arab Emirates have condemned Iranian attacks on their territories, saying strikes have hit both military assets and civilian infrastructure. Countries affected by rising oil prices and market volatility have called for a diplomatic resolution, with Pakistan playing a role in mediation efforts, according to the source article.

Gulf states cite attacks on territory and infrastructure

Oman, described in the source article as a key mediator in U.S.-Iran nuclear talks, expressed dismay at the launch of the war. The article said Oman accused the United States of losing control of its foreign policy and argued the conflict would not serve U.S. interests or global peace.

Qatar has called for dialogue and helped facilitate mediation efforts, according to the source article. The article also said the UAE condemned Iranian attacks and reportedly conducted air strikes against Iran, coordinating with the United States and Israel.

Ceasefires tested as fighting in Lebanon continues

The April 8 ceasefire has not ended hostilities across the region, the source article said. Israel and Lebanon renewed a separate ceasefire agreed on April 16, but Israeli strikes in Lebanon have continued.

Tehran has described Israel’s continued operations in Lebanon as a violation of the broader April 8 ceasefire agreement referenced in the source article. Diplomacy aimed at negotiating a wider deal has continued, with governments in and beyond the region pressing for an end to attacks that have contributed to higher oil prices and wider market swings.

Officials and mediators are expected to keep pushing for talks, with oil markets and regional security risks likely to remain the central focus while the ceasefire arrangements are tested.