What is the authenticity of the حديث (Hadith) about the Muslims and Romans uniting to fight a common enemy in the End Times?

Abu Dawud and Ibn Majah narrated a hadith (definition) from Dhu Mikhbar, which Al-Albani authenticated. In it, he said: "a secure peace. Then you and they will fight an enemy behind you, and you will be victorious, take spoils, and be safe. Then you will return until you encamp in a meadow with hills. A man from among the Christians will raise the cross and say, 'The cross has prevailed!' A man from among the Muslims will then become angry and break it. At that point, the Romans will betray [you] and gather for the great battle."