In 149 BCE, Roman consuls Manius Manilius and Lucius Marcius Censorinus landed forces near Carthage, initiating the siege that opened the Third Punic War. Rome had demanded Carthage surrender arms and relocate inland, conditions the Carthaginians rejected. The city's fortifications included a triple wall system extending approximately 33 kilometers. Initial Roman assaults failed against these defenses. The siege persisted for three years until Scipio Aemilianus assumed command in 147 BCE and systematically reduced the city's supply lines. Carthage fell in spring 146 BCE.