Which phrase in "Anchors Aweigh" expresses the sailors' readiness to encounter challenges at sea?

The phrase "Fight our battle cry" embodies the sailors' readiness to face challenges at sea. This line conveys a sense of determination and courage, suggesting that the sailors are prepared to engage in whatever conflicts or adversities they may encounter on their journey. The term "battle cry" itself implies an element of enthusiasm and a willingness to confront obstacles head-on, showcasing the spirit of the sailors as they embrace the call to action.

While other phrases in the song carry different sentiments, such as the anticipation of departure at dawn or a hopeful intention to reunite, they do not directly reflect the readiness or combative spirit that "Fight our battle cry" encapsulates. Thus, this specific phrase serves as a clear expression of the sailors' resolve to face the unknown challenges of the sea bravely.