In the 3rd century BCE, Rome was not a naval power and had little experience in sea combat. Before the First Punic War began in 264 BCE, the Roman Republic had not campaigned outside the Italian Peninsula. The Republic's military strength was in land-based warfare, and its main assets were the discipline and the courage of the Roman soldiers. The boarding bridge allowed the Romans to use their infantry advantage at sea, therefore helping to overcome the Carthaginians' superior naval experience and skills. The Romans' application of boarding tactics worked by winning several battles, most notably those of Mylae, Sulci, Tyndaris and Ecnomus.