Based on remarks at a 19 December 2017 NUS Middle East Institute seminar

The Middle East being the Middle East, everything is interrelated. What happens in the region impacts Yemen and what happens in Yemen impacts the region. The crisis in Yemen, like many conflicts in the Middle East, did not originate with the power struggle between Saudi Arabia and Iran, but inevitably get sucked into it.

Yemen was a Saudi problem long before it took on the mantle of a Saudi-Iranian proxy war and it may be the conflict that is most important and most sensitive for the kingdom. It also may be the proxy war that comes to haunt Saudi Arabia the most. Beyond cross-border tribal relationships, Yemen, a devastated country where recovery and reconstruction is certain to be a slow process, is likely to have a next generation that will be deeply resentful of Saudi Arabia with all the political and security implications that go with that.

More immediately, two recent factors stick out that potentially have significant geopolitical consequences. First, the recent meeting between the crown princes of Saudi Arabia and the United Arab Emirates, Mohammed bin Salman and Mohammed bin Zayed, with leaders of Yemen's Islamist Islah party in the wake of the killing of former Yemeni president Ali Abdullah Saleh. The presence of Mohammed bin Salman at the meeting was far less remarkable than that of Mohammed bin Zayed and it is not clear what it means. It is Mohammed bin Zayed rather than Mohammed bin Salman who is truly uncomfortable with any expression of political Islam and certainly with any link to the Muslim Brotherhood. Islah remains an Islamist party even if it announced in 2013 that it had cut its ties to the Brotherhood.

The question is whether Mohammed bin Zayed, who for the almost three years of the Yemen war opposed Saudi cooperation with Islah, sees an alliance with the party as an opportunistic one-off move or whether it signals a shift in policy that could be repeated elsewhere in the Middle East. If so, that would have consequences for the dispute with Qatar and there is no sign of that. In fact, Saudi Arabia signalled days after the meeting that there was likely to be no quick end to the dispute with Qatar by declaring its closed border crossing with the Gulf state permanently shut. Similarly, recent satellite pictures show that the UAE air force is gearing up for greater military engagement against Islamists in Libya. As a result, the significance of the meeting is likely to be limited to Yemen.

Nonetheless, the way the meeting was arranged is significant and tells a story that goes far beyond Yemen. The crown princes sent a private plane to Istanbul to pick up the Islah Party representatives from an Islamic summit called to discuss US President Donald J. Trump's decision to recognize Jerusalem as the capital of Israel. It was a summit the two men decided not to attend and at which they were represented by lower officials. The message was: Jerusalem and the Israeli-Palestinian conflict was not their priority and their opposition to Mr. Trump's move was skin deep. Their priority was the war in Yemen and the larger regional battle with Iran for dominance of the region.

In some ways, Saudi Arabia and the UAE's risky strategy has already backfired. It has given the Brotherhood, violently suppressed in Egypt, outlawed in much of the Gulf and marginalized elsewhere in the region, a new lease on life. Mr. Trump's decision offered the Brotherhood an issue to rally around in an Arab world intimidated and cowed by the violence, repression, insurgencies and civil wars that have characterized it since the 2011 popular Arab revolts that toppled the leaders of Tunisia, Egypt, Libya and Yemen.

With a long history of opposition to a US-mediated Israeli-Palestinian peace process, the Brotherhood has emerged in the front lines of many of the protests against the president's recognition of Jerusalem. Muslim Brothers organized the biggest popular protest in Jordan in a decade and demanded the closure of the Israeli embassy in Amman. Beyond leading demonstrations in Kuwait, Brother members of parliament called on the government to review its ties with Washington and disinvest from the United States.

Mr. Trump's move has also strengthened Brotherhood offshoots like Hamas, the Islamist group that controls the Gaza Strip. Confronted with protests against its inability to break a crippling, economic stranglehold by Egypt, Israel and the Palestine Authority that starved the Strip of electricity and forced government workers to go unpaid for months, Hamas was forced by the UAE and Egypt to enter into a reconciliation agreement with Palestinian President Mahmoud's Abbas' Al Fatah movement and entertain an independent governance position for powerful but controversial, Abu Dhabi-backed former Palestinian security chieftain Mohammed Dahlan.

The second factor are Houth ballistic missile strikes, including the firing in November of a projectile at the international airport of the Saudi capital Riyadh, subsequent claims and denials of a Houthi missile fired towards the UAE, the December 2017 targeting of the Al Yamama palace of the Saudi royal court as King Salman and Prince Mohammed were chairing a meeting of the kingdom's leaders, and the Houthi threat of further attacks. A Saudi military spokesmansaid the kingdom had intercepted 83 ballistic missiles since the Yemen war started almost three years ago.

There is little doubt that the Saudi-UAE intervention in Yemen has fortified ties between the Houthis and Iran. Yet the recent national security strategy that, like Saudi Arabia and the UAE, prioritizes combating "jihadist terrorists;" preventing the domination of "any power hostile to the United States," an apparent reference to Iran and Iranian-backed proxies; and ensuring "a stable global energy market."

The link between Israeli-Palestinian peace making and Iran, and by extension Yemen, is, moreover, likely to become undeniable when Mr. Trump next month must decide whether to uphold the 2015 international agreement with Iran that put severe restrictions on its nuclear program in exchange for the lifting of sanctions.

Under US law, Mr. Trump has to certify Iranian compliance every three months. In October, Mr. Trump refused to do so. He threatened to pull out of the agreement if Congress failed to address the accord's perceived shortcomings within 60 days. Congress has refrained from acting on Mr. Trump's demand that Congress ensure that Iranian compliance involves accepting restrictions on its ballistic missile program that is primarily designed to counter perceived US and Israeli threats, and support of regional proxies. A study by the International Institute of Strategic Studies (IISS) concluded that to counter challenges posed by regional insurgencies, failing states and extremism, Iran was likely to expand its weapons acquisition program to include surface- and air-to-air missiles, advanced fighter aircraft, tanks, advanced mines, and anti-ship cruise missiles.

Concern that proxies that fought in Syria could turn their attention to Yemen was enhanced by Ali-Reza Tavasol, a founder of the 20,000 man-strong Fatemiyoun Division, an Iranian-led Afghan Shiite militia group. "Our war is an ideological war and does not recognize geography and borders. Anywhere oppressed people need help, we will be present there and assist them," Mr. Tavasol said. Mr, Tavasol's statement echoed earlier remarks by Ismail Ghani, the deputy commander of the Revolutionary Guard's Quds Force, who asserted that Fatemiyoun fighters did "not recognize borders to defend Islamic values." Afghan officials alleged that some Fatemiyoun fighters has already been dispatched to Yemen.

At the end of the day, the Saudi-Iranian rivalry is being fought on the back of the Yemenis who are paying a horrendous price. That is unlikely to change as long as Saudi Arabia sees its struggle with Iran as an existential battle. And to be fair to the Saudis, they have good reason to perceive Iran as an existential threat. Not because Iran engages in asymmetric warfare by using proxies, supporting groups like the Houthis or propping up the regime of Syrian President Bashar al-Assad.

But because post 1979-Iran, even if t were to only sit back and do nothing, poses an existential threat in much the same way that the popular Arab revolts of 2011 posed an existential threat. Iran experienced, alongside Russia, the 20th's century only true revolution in which a regime and a political system was overthrown. It was a revolution that toppled a monarch and an icon of the United States. It was a revolution that introduced an Islamic system of governance that has whatever limited degree of popular sovereignty. That is the threat, it constitutes an alternative to an absolute monarchy that claims religious legitimacy and is seeking to ensure its survival.

And if that were not enough, Iran is one of three Middle Eastern nations, that, irrespective of what state of disrepair they may be in, have the building blocks to be regional powers. The other two are Turkey and Egypt. They have large populations, huge domestic markets, battle-hardened militaries, an industrial base, highly educated populations, geography and a deep sense of identity rooted in empire and/or thousands of years of history. Saudi Arabia has money and Mecca.

If Saudi Arabia and the UAE learnt a lesson during the era of US President Barak Obama, it is that nothing is permanent and that countries need to assert themselves. Yemen is an expression of that lesson. Mr. Trump has given the kingdom and the emirates the umbrella they needed. Saudi regional power is to a large extent dependent on an Iran that is hampered by US-led efforts to contain it. Again, to be fair, the UAE has been better than the Saudis at exploiting the opportunity.

Saudi Arabia has so far ended up with mud in its face. The war in Yemen is backfiring and threatens to create even bigger challenges in the longer term. In a toughening of US criticism of the kingdom's conduct of the war, Mr. Trump's nominee for the post of the State Department's legal counsel, Jennifer Newstead, suggested that Saudi Arabia could be violating U.S. and international law by restricting the flow of humanitarian aid in Yemen. British international development secretary Penny Mordaunt issued a similar warning. A determination that the kingdom is in violation would, amid widespread international criticism of the humanitarian crisis in Yemen sparked by Saudi military action, put at risk US support for the intervention, involving US assistance in mid-air refuelling of Saudi and Emirati fighter planes, the provision of precision-guided munitions, and the sharing of intelligence.

Moreover, with dissent repressed, it is difficult to gauge what public opinion in the kingdom is. Prince Mohammed has so far delivered long-overdue social changes but has yet to deliver on his economic reform plans. There is good reason to question the degree to which he will be able to deliver, not only because there are legitimate questions about his plans but also because of the way he has gone about implementing them. The recent arrests of scores prominent Saudis under the mum of an anti-corruption campaign and the financial settlements being negotiated for their release raises questions about what kind of checks and balances a new Saudi Arabia would offer and defy the principle of the rule of law.

No doubt, Prince Mohammed is an enormously popular figure. The problem is that he has created enormous expectations that have not been managed. Moreover, 40 years of Sunni Muslim ultra-conservatism rooted in a history of at least 200 years of ultra-conservative thought cannot be erased with the stroke of a pen. Prince Mohammed's social changes are as popular as they are controversial. In a recent survey, young Saudis said they wanted change: they wanted to date women, they wanted to party, they wanted to drive fast cars, and, yes, they wanted good paying jobs. When asked whether they realized that those same rights would apply to their sisters, they pulled back. In a recent illustration of contradictory attitudes, a Saudi beauty queen withdrew from a Miss Arab World contest after being attacked and threatened online. Similarly, Saudis want jobs but are unprepared for a merit-driven labour market rather than one that offers cushy government jobs.

The long and short of all of this is that the war in Yemen cannot be seen independent of the convulsions of change that have enveloped the Middle East in a convoluted and often violent process with no end in sight. The wars in Syria and Iraq are dying down. Yet, without policies that ensure that all groups in society feel that they have a stake in society, the seeds for renewed conflict are being sown. The same is ultimately also true for Yemen. Whatever one thinks of Mr. Obama, he got it right when he told journalist Jeffrey Goldberg that Saudi Arabia will have to learn to share the Middle East with Iran.

Dr. James M. Dorsey is a senior fellow at the S. Rajaratnam School of International Studies, co-director of the University of Würzburg's Institute for Fan Culture, and co-host of the New Books in Middle Eastern Studies podcast. James is the author of The Turbulent World of Middle East Soccer blog, a book with the same title as well as Comparative Political Transitions between Southeast Asia and the Middle East and North Africa, co-authored with Dr. Teresita Cruz-Del Rosario and Shifting Sands, Essays on Sports and Politics in the Middle East and North Africa.