Listener question from TheSgruby: He asks, "How long were bronze helmets in use? Even after better materials appeared, they seem to have lasted a surprisingly long time as part of military equipment." Murray takes a look.

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On 10 January 49 BC, Julius Caesar crossed the Rubicon River, a decision that would trigger civil war and reshape the Roman world. But what did this moment really mean, and how inevitable was the conflict that followed?

In this episode of the Ancient Warfare Podcast, the team explore the political and military background to Caesar's fateful decision. We look at the breakdown of relations between Caesar and Pompey, the pressures within the Roman Republic, and why compromise ultimately failed. Was Caesar forced into action, or did he deliberately choose war?

The discussion goes beyond the famous phrase and the dramatic image of a single river crossing. We examine the military realities Caesar faced, the loyalties of his legions, Pompey's strategic position, and how contemporaries understood the step Caesar had taken. Finally, we consider how the crossing of the Rubicon has been remembered, mythologised, and misunderstood ever since.

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Listener question from Andrew: While watching a video on the Second Persian Invasion, Andrew wondered why the Greeks didn't attack the Persian engineers as they built the massive pontoon bridge across the Hellespont. How was the bridge constructed and defended, and did the Greeks miss a real chance to destroy it? Murray explains.

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Listener question from @klappspatenkamikaze: After commenting on an earlier episode about cloaks in combat, they added, "Now I want to know more about signalling 😃." Murray is happy to oblige.

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Listener question from TheSgruby: How important were the Evocati in Roman political and military life? And when do they first – and last – appear in the historical record?

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In this episode of Ancient Warfare Answers, Murray Dahm tackles a question about Roman tactics. If the Romans deployed in three lines of infantry, each eight men deep, how did they avoid leaving their flanks exposed to an enemy who could form a single, wider line? Murray unpacks how the Roman system worked and why it proved so effective.

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"The second century begins with a great war of conquest, and ends with another civil war between pretenders to the throne. Between those two extremes, there were changes in equipment, the rise of career officers, and the introduction of campaigns fought with detachments, instead of uprooting the entire legion."

The team discuss the latest edition of the magazine issue 105, A Century of Warfare: The Roman army in the 2nd century AD.

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In this episode of Ancient Warfare Answers, Murray Dahm returns to the topic of dice in the ancient world. After a question about Greek and Roman dice and the game of Hazard, Murray explores other games played with dice and uncovers intriguing details about the Roman game of Alea — perhaps the one Julius Caesar referenced with his famous phrase "Alea iacta est." As always, the reality is more complex than it first seems.