United Nations Security Council resolution 616 was adopted two days after the acceptance of Resolution 598, following the downing of Iran Air Flight 655 over the Persian Gulf by the U.S. warship USS Vincennes.

The launch of Operation Karbala 5 in January 1987 shifted the balance of power in Iran’s favor and signaled the possible fall of Basra and the separation of southern Iraq from the rest of the country⁠[1]. Therefore, the Soviet Union and the United States—along with several Arab states— stepped up their efforts to strengthen Saddam’s war machine in order to restore the balance of power.⁠[2] Iraq, meanwhile, targeted Iranian cities and economic infrastructure and tried to cut off Iran’s main economic lifeline by attacking oil platforms and tankers. At the same time, Syria, as an ally of the Islamic Republic, shut down Iraq’s oil pipeline to the Mediterranean,⁠[3] forcing the country to rely on routes through the Persian Gulf to export its oil.

Lacking an effective navy, Iraq sought to draw its Arab allies into the conflict, and Kuwait and Saudi Arabia consequently became involved in military confrontations with Iran in the Persian Gulf.⁠[4]

After Kuwait entered the conflict, it leased tankers from the Soviet Union to protect its oil shipments against Iranian attacks. However, as the Tanker War intensified, the Soviet cargo ships Ivan Korshun⁠[5] and Marshal Chekhov⁠[6] were targeted by Iranian high-speed boats and naval mines. The Soviet Union then chose a more cautious stance and avoided direct confrontation with Iran, thereby opening the way for the United States, which had entered the Persian Gulf at Kuwait’s request.

With the presence in the Persian Gulf, Washington sought to secure its own interests and those of its allies. Gradually, at the U.S. request, several NATO member states also deployed military forces to the region.⁠[7]

From July 1987 to July 1988, tensions between Iran and the United States in the Persian Gulf continued. During this period, the ships Bridgeton,⁠[8] Gas Prince,⁠[9] the supertanker Sungari,⁠[10] a U.S. helicopter,⁠[11] and Kuwait’s offshore Al-Ahmadi Terminal⁠[12] were attacked by Iran, while the vessel Iran-Ajr,⁠[13] and the R-4 and R-7 platforms in the Rashadat oil field⁠[14] were attacked by the United States. The peak of tensions came on July 3, 1988, when Iran Air Flight 655 was shot down by missiles fired from the USS Vincennes, resulting in the martyrdom of all 290 people on board.⁠[15]

Following the incident, the Iranian government sent a letter to the UN Secretary-General, blaming the indifference of international organizations—especially the United Nations toward earlier crimes—for the tragedy and calling for an appropriate response.⁠[16] Iran also requested an emergency meeting of the Security Council to examine the incident.⁠[17] In response, the Council convened on July 20, 1988. At the meeting, Iran’s representative presented three demands: “an apology by the United States to the victims’ families and the affected people and government”; “formal acknowledgment of U.S. liability and compensation for both material and moral damages”; and “reviewing the policies that led to the destruction of the plane and the martyrdom of its innocent passengers”.⁠[18]

Expressing deep regret over the incident and indicating Washington’s readiness to compensate the victims’ families, the U.S. representative nonetheless defended the actions of the USS Vincennes and stated that the United States would not issue an apology. The U.S. also announced that investigations are underway to clarify the circumstances and prevent similar incidents.⁠[19] At this meeting, Resolution 616 was adopted:

“The Security Council,
Having considered the letter dated July 5, 1988, from the Acting Permanent Representative of the Islamic Republic of Iran addressed to the President of the Security Council (S/19981);
Having heard the statement of the representative of the Islamic Republic of Iran, Minister for Foreign Affairs, Ali-Akbar Velayati, and the statement of the representative of the United States of America, Vice-President George Bush;
Deeply distressed that a civil aircraft of Iran Air, scheduled international flight 655, was destroyed in flight over the Strait of Hormuz by a missile fired from the United States warship USS Vincennes;
Stressing the need for a full explanation of the facts of the incident based upon an impartial investigation;

Gravely disturbed at the increasing exacerbation of tension in the (Persian) Gulf region;
l. Expresses its deep distress at the downing of an Iranian civil aircraft by a missile fired from a United States warship and profound regret over the tragic loss of innocent lives;
2. Expresses its sincere condolences to the families of the victims of the tragic incident and to the people and Governments of their countries of origin;
3. Welcomes the decision of the International Civil Aviation Organization, in response to the request of the Islamic Republic of Iran, ‘to institute an immediate fact-finding investigation to determine all relevant facts and technical aspects of the chain of events relating to the flight and destruction of the aircraft’ and welcomes the announcements by the United States of America and by the Islamic Republic of Iran of their decisions to cooperate with the International Civil Aviation Organization investigation;

4. Urges all parties to the Convention on International Civil Aviation, signed at Chicago in 1944, to observe to the fullest extent, in all circumstances, the international rules and practices concerning the safety of civil aviation, in particular those of the annexes to that Convention, in order to prevent the recurrence of incidents of the same nature;
5. Stresses the need for a full and rapid implementation of its Resolution 598 (1987), as the only basis for a comprehensive, just, honorable, and durable settlement of the conflict between the Islamic Republic of Iran and Iraq, and reaffirms its support to the efforts of the Secretary-General to implement that resolution, committing itself to work with him in the development of his implementation plan”.⁠[20]

In this resolution, the Security Council refrained from condemning the United States as the party responsible for the attack on the civilian aircraft and the killing of nearly 300 Iranian passengers. Instead, it merely expressed regret, emphasized the need for an immediate fact-finding mission, called for adherence to the 1944 Chicago Convention, and urged the full implementation of Resolution 598.