Siege of Rhodes (305 BC)

Siege of Rhodes
Part of the Wars of the Diadochi
Date 305–304 BC Location Rhodes island Result Rhodian victory
Belligerents
Antigonid dynasty	Rhodes Ptolemaic Kingdom Seleucid Empire
Commanders and leaders
Demetrius	Ares
Strength
about 30,000	11,200
Casualties and losses
1,300	5,400

The Siege of Rhodes in 305–304 BC was one of the most notable sieges of antiquity, when Demetrius Poliorcetes, son of Antigonus I, besieged Rhodes in an attempt to make it abandon its neutrality and close relationship with Ptolemy I.

The island of Rhodes was a mercantile republic with a large navy which controlled the entrance to the Aegean Sea. Rhodes maintained treaties of neutrality with other empires to protect trade. However, they had a close relationship with Ptolemy I and Demetrius was worried Rhodes would supply him with ships. Demetrius also saw the possibility of using Rhodes as a base. The decision to lay siege to Rhodes was influenced by these fears but it was also a piratical enterprise by Demetrius. Much of the Greek world, regardless of whether they were allies of Demetrius or not, apparently also viewed the siege as a pirate attack and sympathized with the Rhodians, and this attitude existed even in Macedonia.

As well as a fighting fleet of 200 ships and 150 auxiliary vessels Demetrius also enlisted the aid of many pirate fleets. Over 1,000 private trading vessels followed his fleets in anticipation of the plunder success would bring.

The city and main harbor of Rhodes was strongly fortified and Demetrius was unable to prevent supply ships from running his blockade so capturing the harbor was his main priority. He first built his own harbor alongside and constructed a mole from which he deployed a floating spiked boom but Demetrius never succeeded in taking the harbor. At the same time his army ravaged the island and built a huge camp next to the city but just out of missile range. Early in the siege the walls were breached and a number of troops entered the city but they were all killed and Demetrius didn't press the attack. The walls were subsequently repaired.

Both sides used many technical devices during the siege such as mines and countermines and various siege engines. Demetrius even built the now notable siege tower, known as the Helepolis, in his attempt to take the city.

The citizens of Rhodes were successful in resisting Demetrius; after one year he abandoned the siege and signed a peace agreement (304 BC) which Demetrius presented as a victory because Rhodes agreed to remain neutral in his war with Ptolemy (Egypt). The unpopularity of the siege may have been a factor in its abandonment after only one year.

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