Strategic Mutual Defence Agreement


The Strategic Mutual Defence Agreement is a security and defence pact between the countries of Pakistan and Saudi Arabia. Under this agreement, both countries have committed to treating any act of aggression against one as an act against both.
The pact was signed on 17 September 2025 at Al-Yamamah Palace in Riyadh, by Saudi crown prince and Prime Minister Mohammed bin Salman and Pakistani prime minister Shehbaz Sharif, during a state visit of the latter to Saudi Arabia.

Background

and Pakistan share a long-standing relationship that encompasses military and economic cooperation, as well as cultural and religious ties.
In recent years, shifts in Middle Eastern geopolitics—including concerns about external threats, responses to Israeli military actions, and doubts regarding American reliability as a security guarantor—have intensified regional security concerns. Many analysts view the agreement, at least in part, as a response to these dynamics.

Israeli airstrikes on Qatar

The Financial Times reported that the 9 September 2025 Israeli airstrikes in Doha, Qatar deeply unsettled Gulf states' sense of security, exacerbating long-standing concerns about United States unpredictability and commitment to their defence.
The Israeli unilateral attacks particularly challenged United States obligations under the Gulf Cooperation Council, which include protecting capital cities in exchange for oil and gas, a framework in which Saudi Arabia is a participant. A senior Saudi security official stated, "We hope will reinforce our deterrence—aggression against one is aggression against the other". The spillover of the Israel's war in Gaza in wider Middle East is widely seen as defining factor in Saudi Arabia's signing of a security pact with Pakistan.

Agreement

The treaty was signed on 17 September 2025 in Riyadh by the Saudi Crown Prince and Prime Minister, Mohammed bin Salman, and the Pakistani Prime Minister, Shehbaz Sharif. It came against the backdrop of the Israeli strikes on Qatar and followed the Arab–Islamic extraordinary summit in Doha. Both countries have had close economic, religious, and security ties since the 1960s, when Pakistani troops were first deployed on Saudi frontiers over fears of Egypt's participation in the North Yemen civil war. Since then, Pakistan has trained between 8,000 and 10,000 Saudi military personnel.
According to a statement by the Saudi Arabia Press Department, "The agreement states that any aggression against either country shall be considered an aggression against both." The agreement's text was not officially published.
In an analysis published by the Belfer Center for Science and International Affairs, the agreement is "primarily a political signal of solidarity and strategic cooperation, rather than an unconditional war guarantee."

Prospective nuclear weapons deployment

The news of SMDA quickly attracted the Western news media of speculating Pakistan's nuclear weapons being deployed in the Kingdom. Since 2010s, Saudi Arabia has been keenly interested in nuclear weapons to counter Iranian regional ambitions, and has fostered ties with Pakistan, which has painstakingly and covertly developed its nuclear weapons program started in 1972 and proved its operational capabilities in 1998.
Over the question of the nuclear umbrella, a senior Saudi official told Reuters that "This is a comprehensive defensive agreement that encompasses all military means" but did not explicitly mention Pakistan's nuclear sharing with Saudi Arabia. It is the first military pact between an Arab Gulf state and a nuclear power. Pakistani Defence Minister Muhammad Asif initially hinted at the nuclear sharing aspect to the strategic agreement but later backtracked, denying such a scope. This lack of clarity led to speculation, leaving the exact terms of the pact uncertain.
The independent assessment by the Belfer Center for Science and International Affairs is of the view that nuclear umbrella remains ideally speculative at its best and that Islamabad's foreign and war strategists would be "extremely wary of any commitment that dilutes its control over its nuclear codes or entangles it in conflicts beyond its primary focus."

Reactions

Geopolitical analyst Ian Bremmer suggested that the pact could alter India's security calculus, particularly if Saudi Arabia is committed to coming to Pakistan's defence in the event of a conflict.

Domestic

An editorial in the Pakistani newspaper Dawn called it "the most significant upgrade to Pakistan–Saudi defence relations in decades". Former Pakistani diplomat Hussein Haqqani noted that the treaty likely covers missile defence.
Saudi officials portrayed the pact as a formalisation of a long-standing military partnership, while also using it to send a message of strategic diversification amid regional turmoil.

Regional

Some neighbouring states and regional powers have expressed concern about the impact on the regional security balance. India, in particular, has reacted with statements that it is carefully monitoring the development. Analysts speaking to The Hindu said the timing of the pact appeared to be a warning after Israel's expanding military offensive across the Middle East.
The Institute for the Study of War was of the view that the pact would likely concern Iran, which it supported its reasoning with Iranian hostile actions in both Pakistan and Saudi Arabia in past years. However, the Iranian President Masoud Pezeshkian, speaking on the United Nations General Assembly session, welcomed the pact between Pakistan and Saudi Arabia as the beginning of a "comprehensive regional security system" in opposing Israeli military strikes expansion in the Middle East.

Expansion

In January 2026, Turkey moved to join the defence arrangement between Pakistan and Saudi Arabia, opening talks with both countries on accession.
Turkey already maintains defence cooperation with both countries, including naval shipbuilding for the Pakistan Navy and joint work in aerospace and unmanned systems, which formed the basis for its proposed inclusion.