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?