The battle at Artemisium had seen attempts to negate the Persian advantage in numbers, but ultimately the Allies may have realised that they needed an even more constricted channel in order to defeat the Persians.
Slaget ved Artemisium havde set forsøg på at opveje persernes fordel i antal, men til sidst kan de allierede have indset, at de havde brug for en endnu mere snæver kanal for at besejre perserne.