50 - The Second Antigonid War (225 - 224)
While the Republic was performing its Operations in Illyria, the Antigonid Kingdom had begun a war with the Kingdom of Pontos, that controlled the north of today`s Turkey along the coast of the Black Sea. By early 225, Pontos had sued for peace and ceded most of its territories to the Antigonids, vastly expanding their influence in the region.
After the Island Campaign, that completed Rome`s dominance over the Adriatic Sea, the Republic shifted its focus back on the south again. The Ptolemaic Kingdom was still in control over most of Thessaly, while the Antigonid Kingdom did not only possess Macedonia and Thracia, but also small holdings in Thessaly and the southern part of the island of Euboea. This made the Greek holdings of the Republic vulnerable from two sides and Rome was determined to solve this situation.
Greece before the Second Antigonid War in 225
The Republic began the Second Antigonid War in mid 225. The focus of Operations was on Thessaly and Euboea, where the Roman main force started a two-pronged attack. It was the smaller force heading into Thessaly, that encountered the only field battle of the war near Pharsalos, where an Antigonid army of estimated seven thousand soldiers was defeated and forced to retreat northward.
Two months later, in September, another battle allegedly took place. According to Polybios a mercenary force of eight thousand men faced the Roman main force. While the Mercenaries were slain to the last man, the Romans suffered no casualties at all. Polybios writes a rather convoluted, but also amusing paragraph about how the Romans were not only brave on the battlefield, but also had Fortune on their side and how more things may happen on the battlefield than any human may imagine. Nowadays it is believed, that no battle took place and that, if a Mercenary force did exist, it simply disbanded when faced with a way larger Roman army.
Besides that, the cities of Larissa and Eretria both surrendered in January 224 and the last organized Antigonid force was defeated in the south of Euboea in February. The alleged main goals of that Campaign had thus been achieved.
In the North, the Republic had deployed an Army of roughly fifteen thousand Soldiers. At first, its only objective was to capture the border city of Stoboi, which was achieved by November 225. At the end of winter the army advanced further into Paeonia and occupied the province during spring 224 without facing resistance.
This successful land campaign was complemented by the first large-scale naval campaign in Roman history. The Republic had learned from past mistakes and appointed Chelbes Adonibaal as Fleet Commander. Hailing from a family of Carthaginian descent from Lilybaeum, he had signed up for service within the Republic. Little is known about his early life, besides hints towards a long career at sea.
Expecting Antigonid reinforcements from the sea, he positioned his fleet close to the island of Skiros. Indeed an enemy fleet arrived, but tried to escape across the Aegean Sea. Close to Lesbos, the two fleets clashed. Chelbes, commanding the larger force, was able to sink or capture roughly thirty Antigonid vessels, before the enemy was able to escape. With this victory, the sea was now controlled by the Romans and no further attempt to challenge their supremacy is recorded.
Being defeated both at land and sea, the Antigonids agreed to a peace treaty in mid 224, that would hand over Thessaly, Euboea and Paeonia to the Republic.
While the Republic was performing its Operations in Illyria, the Antigonid Kingdom had begun a war with the Kingdom of Pontos, that controlled the north of today`s Turkey along the coast of the Black Sea. By early 225, Pontos had sued for peace and ceded most of its territories to the Antigonids, vastly expanding their influence in the region.
After the Island Campaign, that completed Rome`s dominance over the Adriatic Sea, the Republic shifted its focus back on the south again. The Ptolemaic Kingdom was still in control over most of Thessaly, while the Antigonid Kingdom did not only possess Macedonia and Thracia, but also small holdings in Thessaly and the southern part of the island of Euboea. This made the Greek holdings of the Republic vulnerable from two sides and Rome was determined to solve this situation.

Greece before the Second Antigonid War in 225
The Republic began the Second Antigonid War in mid 225. The focus of Operations was on Thessaly and Euboea, where the Roman main force started a two-pronged attack. It was the smaller force heading into Thessaly, that encountered the only field battle of the war near Pharsalos, where an Antigonid army of estimated seven thousand soldiers was defeated and forced to retreat northward.
Two months later, in September, another battle allegedly took place. According to Polybios a mercenary force of eight thousand men faced the Roman main force. While the Mercenaries were slain to the last man, the Romans suffered no casualties at all. Polybios writes a rather convoluted, but also amusing paragraph about how the Romans were not only brave on the battlefield, but also had Fortune on their side and how more things may happen on the battlefield than any human may imagine. Nowadays it is believed, that no battle took place and that, if a Mercenary force did exist, it simply disbanded when faced with a way larger Roman army.
Besides that, the cities of Larissa and Eretria both surrendered in January 224 and the last organized Antigonid force was defeated in the south of Euboea in February. The alleged main goals of that Campaign had thus been achieved.
In the North, the Republic had deployed an Army of roughly fifteen thousand Soldiers. At first, its only objective was to capture the border city of Stoboi, which was achieved by November 225. At the end of winter the army advanced further into Paeonia and occupied the province during spring 224 without facing resistance.
This successful land campaign was complemented by the first large-scale naval campaign in Roman history. The Republic had learned from past mistakes and appointed Chelbes Adonibaal as Fleet Commander. Hailing from a family of Carthaginian descent from Lilybaeum, he had signed up for service within the Republic. Little is known about his early life, besides hints towards a long career at sea.
Expecting Antigonid reinforcements from the sea, he positioned his fleet close to the island of Skiros. Indeed an enemy fleet arrived, but tried to escape across the Aegean Sea. Close to Lesbos, the two fleets clashed. Chelbes, commanding the larger force, was able to sink or capture roughly thirty Antigonid vessels, before the enemy was able to escape. With this victory, the sea was now controlled by the Romans and no further attempt to challenge their supremacy is recorded.
Being defeated both at land and sea, the Antigonids agreed to a peace treaty in mid 224, that would hand over Thessaly, Euboea and Paeonia to the Republic.
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