Palmyra

Overview

Palmyra is an ancient oasis city in Syria, at the intersection of caravan roads crossing the central Syrian desert. Known in Semitic sources as Tadmor, it grew wealthy through trade and became a major cultural center of the Roman east. Its monuments record the meeting of local traditions with Greco-Roman and Persian influences. The ancient ruins, including temples, colonnaded streets and funerary structures, form a UNESCO World Heritage Site. Palmyra is also a modern town and a strategic desert crossroads, characteristics that made it a repeated objective during the Syrian civil war.

In the third century CE, Palmyra reached its greatest political influence under Odenathus and, after his assassination, his wife Zenobia. Their rule extended across much of Rome’s eastern sphere before Emperor Aurelian reconquered Zenobia’s territories. More than seventeen centuries later, Islamic State captured the city in May 2015, killed people there and destroyed major monuments. The Syrian Army, supported by Russian air power, retook Palmyra in March 2016. Islamic State captured it again that December, and Syrian forces reconquered it in March 2017. The fighting showed how control of Palmyra affected routes between central Syria and the Euphrates valley, as well as the fate of its archaeological heritage.

Geography

Palmyra lies in Homs province, in an oasis between the Euphrates and Orontes rivers. The oasis provided a stopping point for caravans traveling through otherwise arid country between Mesopotamia and the Mediterranean region. Roads converging there made the settlement useful to merchants long before modern armies sought the same junction. Its position also connected the interior around Deir ez-Zor and Raqqa with Homs and Damascus.

Those routes explain Palmyra’s military value during the Syrian civil war. An army holding the city could use it as a base for operations across the central desert and as a point of departure toward the Euphrates valley. A force losing it risked weaker links between its positions to the east and west. Before its defeat there in 2015, the Assad regime used Palmyra as its principal base for operations in the central Syrian desert. After the city fell, regime forces lost control of much of the surrounding desert. Their later return was therefore a campaign for a wider road network and desert foothold, as well as for the town itself.

The ancient city and modern settlement occupy the same oasis landscape. Palmyra’s archaeological remains are consequently more than isolated monuments: their setting helps explain why a wealthy urban center developed at this point in the desert. The surviving streets, public buildings, temples and burial monuments preserve evidence of a city shaped by long-distance exchange. That relationship between oasis, routes and ruins underlies the site’s historical importance and its recognition by UNESCO.

Ancient and biblical history

Palmyra’s Semitic name, Tadmor, is connected with the word for palm tree. Classical sources called the city Palmyra, a rendering of the older name. The historian Josephus recorded its name in Greek as Ταδάμορα. These forms preserve the identity of a settlement associated with its oasis across different languages and historical periods. The name Tadmor also appears in discussions of ancient Jewish history, while Palmyra became the familiar name in accounts of the Roman world.

The city’s position on caravan roads supported its rise as a trading center. Goods and people moving between the Roman east, Mesopotamia and lands farther away passed through the oasis. Wealth from that exchange helped produce a monumental city whose remains include long colonnaded avenues, temples, public spaces and elaborate tombs. Palmyra’s architecture combined Roman forms with local and eastern traditions. Its archaeological importance rests both on the scale of those remains and on what they show about cultural exchange across the ancient Middle East.

In the third century CE, Odenathus ruled Palmyra as a vassal of Rome. He fought Persian forces that had invaded Rome’s eastern territories and maintained at least nominal loyalty to the emperor Gallienus. Gallienus granted him authority that made him Rome’s virtual viceroy over the east. Palmyra reached a height of prosperity and political power under this arrangement. Odenathus’s position linked the city’s fortunes to the struggle over Rome’s eastern provinces, giving its ruler influence well beyond the caravan oasis.

After Odenathus was assassinated, his wife Zenobia governed as regent for their young son Vaballathus. She extended Palmyrene power and sought independence from Rome, openly taking the title Augusta in 271 CE. Her challenge turned Palmyra from a powerful Roman partner into the center of a rival eastern dominion. Emperor Aurelian then reconquered her territories and took Zenobia prisoner. The episode remains central to Palmyra’s history: its rulers briefly commanded a far-reaching political and military power, while the city’s subsequent fate remained tied to Rome.

The ruins preserve traces of the wealth behind that ascent. Their temples, colonnades and funerary architecture made Palmyra one of the ancient world’s notable urban sites. They also explain why damage to the city’s monuments in the twenty-first century drew attention far beyond Syria. The destruction removed physical evidence of the people who built, used and transformed these spaces over centuries. The archaeological site and its museum of ancient artifacts therefore represent both Palmyra’s local history and a wider record of exchange between civilizations.

Jewish history

Tadmor has a place in Jewish historical writing through its ancient name and its appearance in Josephus’s account. His Greek rendering, Ταδάμορα, is one link between the Semitic name and the city later called Palmyra in classical sources. Modern accounts of Tadmor also discuss its biblical and post-biblical associations. These references connect the oasis to the broader history of the ancient Near East without changing its identity as a city in the Syrian desert.

Palmyra’s destruction later entered an Israeli discussion about the protection of holy sites. Prime Minister Benjamin Netanyahu cited Islamic State’s destruction of the UNESCO site when explaining the importance of Israel’s sovereignty in Jerusalem to religious freedom and the safeguarding of its shrines. His comparison concerned the danger posed to historic religious places by forces willing to destroy them. It also reflected how the fate of Palmyra’s monuments became an international example in debates about the protection of cultural heritage.

Modern history

Palmyra became a major battlefield during the Syrian civil war because of its position in the central desert. The Assad regime had used the city as a base for military operations there. In mid-May 2015, Islamic State launched an offensive in eastern Homs province, defeating regime forces at Sukhna and advancing on Palmyra. More than 120 Syrian soldiers died defending the city on May 17. Islamic State captured Palmyra and its archaeological site on May 20, taking a crossroads that also exposed the regime’s hold on the surrounding desert.

The seizure came during Islamic State’s first year as a declared caliphate. In the same month, the organization gained Ramadi in Iraq and Palmyra in Syria. Its victory at Palmyra expelled regime forces from much of the Syrian desert and gave it control of a place with military, symbolic and archaeological significance. After capturing the town, Islamic State staged public executions and used loudspeakers to press residents to identify government forces. It executed government officials while also distributing bread and repairing power generators in efforts to cultivate local support. Coercion and attempts to administer daily life operated together under its rule.

Islamic State also attacked Palmyra’s heritage. It destroyed shrines in mid-June 2015 and, from May through December, demolished large parts of the ancient site. In August it destroyed a significant part of the Temple of Baal and detonated explosives around the Temple of Baalshamin, causing major damage. On October 5 it destroyed the Arch of Triumph with explosives. These acts formed part of a wider campaign against ancient monasteries and Roman temples in the Middle East. The organization also murdered Khaled al-Asaad, the scholar who had spent decades studying and protecting Palmyra’s ruins. The killings and demolition together made its occupation an assault on people and on the region’s historical record.

The Syrian Army began an offensive to retake Palmyra on March 4, 2016. The campaign lasted around three weeks. Syrian ground forces and supporting units advanced with Russian air support, while Islamic State sent dozens of reinforcements from Raqqa to defend the city. Russian warplanes flew roughly 20–25 sorties a day against targets in the Palmyra area during the campaign. On March 27, Syrian forces recaptured the town. The victory reduced Islamic State’s territory and disrupted its communications with forces around Damascus and Homs.

Retaking Palmyra gave the Syrian Army control of a crossroads linking Deir ez-Zor and Raqqa with Homs and Damascus. It also provided a base for further operations toward Islamic State’s eastern strongholds. The victory strengthened the Assad regime’s image and protected antiquities that had survived the occupation. It did not establish Assad as Syria’s only alternative to Islamic State: Kurdish forces and other opponents were also fighting the organization. Palmyra was one battle within a wider war, even though its military position and famous ruins gave that battle exceptional prominence.

Control remained unstable. Islamic State retook Palmyra in December 2016 while Syrian government forces were occupied elsewhere. Syrian forces, again supported by Russia, reconquered the city in March 2017. The renewed campaign deprived Islamic State of one of its most prominent territorial gains. Its loss of Palmyra formed part of a broader retreat that reduced the organization’s access to territory, resources and revenue. Fighting continued beyond the city: in late September 2017, Islamic State forces attacked Syrian convoys and outposts in an effort to cut the logistics route between Deir ez-Zor and Palmyra. Repeated changes of control demonstrated that holding the town alone did not secure the desert roads around it.

Security

Palmyra’s importance extends beyond battles inside the town. The road through Damascus, Palmyra and Iraq enabled weapons from the Iranian regime to reach Hezbollah. That route shaped security threats farther west, including around Mas’ade in the Golan Heights, part of the State of Israel and of the historic region of Bashan. Most of Bashan lies in Syria and is today occupied by Syria. Movement through Palmyra thus mattered to forces operating across a much larger area than the oasis itself.

The T-4 military base near Palmyra became another focus of regional security concerns. It coordinated militias backed by the Iranian regime. On April 9, 2018, Israel struck the base, killing four Iranian military advisers. The strike placed the Palmyra area within the confrontation over the Iranian regime’s military presence in Syria. The city’s surrounding roads and airfields gave military actors access to central Syria, while their use also made the area a target for forces seeking to interrupt weapons movements and militia coordination.

For the Assad regime, Palmyra remained a staging point for operations in the desert. Its army used Palmyra, Damascus and Jabal al-Druze as bases for an offensive against rebels there. For Islamic State, attacks on routes near the city offered a means to disrupt government logistics even after it had lost the town. For Syrian government forces, holding Palmyra supported movement toward the Euphrates valley and helped connect positions in central and eastern Syria. These overlapping uses explain why Palmyra changed hands repeatedly and why combat continued along its approaches after each reconquest.

Present day

Palmyra remains both an inhabited desert crossroads and a UNESCO World Heritage Site marked by extensive wartime damage. Its surviving remains still convey the scale and character of the ancient caravan city, while the losses to its temples and monumental arch record the destruction inflicted during Islamic State’s occupation. The site’s historical value reaches beyond any one period: its name preserves an older Semitic identity, its architecture reflects exchange across the ancient world, and its third-century rulers illustrate the shifting balance of power in Rome’s east.

The area’s strategic role persisted after the battles of 2015–2017. In March 2025, Turkish military teams surveyed the T-4, Palmyra and Hama airbases while Ankara negotiated a defense arrangement with Syria’s new rulers. Israeli aircraft struck the T-4 and Palmyra airbases before a scheduled Turkish inspection that month and struck T-4 again in early April. The renewed attention to nearby airfields showed that Palmyra’s location continued to matter in Syria’s changing security landscape, alongside the continuing importance of preserving its ancient ruins.