What does "they are the most eager to return after a retreat" mean?

I am not sure what "*they are the most eager to return after a retreat*" means in the context of the following hadith: > Al-Mustawrid reported: He said in front of Amr ibn al-‘As that he > heard the Messenger of Allah, peace and blessings be upon him, say, > “The Hour will be established while the Romans are the majority of > people.” Amr said, “Be careful what you say.” He said, “I have said > what I heard from the Messenger of Allah.” Amr said, “If the Prophet > said that, indeed, there are four good qualities in them: they are the > most forbearing of people in tribulation, they are the quickest to > recover after a calamity, **they are the most eager to return after a > retreat**, and they are good to the poor, the orphan, and the > vulnerable. Their fifth quality is good and beautiful: they are the > best at stopping the oppression of their kings.” > > Source: Ṣaḥīḥ Muslim 2898 > > Grade: Sahih (authentic) according to Muslim Does it mean that when faced with a superior opponent, they back down but will be eager to once again return to the battle field to fight against him?