The Romans -Christians- have been defeated (by the Persians) - Atheists-, in

﴿فِيٓ أَدۡنَى ٱلۡأَرۡضِ وَهُم مِّنۢ بَعۡدِ غَلَبِهِمۡ سَيَغۡلِبُونَ ﴾
[الرُّوم: 3]

The Romans -Christians- have been defeated (by the Persians) - Atheists-, in the land near by - (the near end of the Roman Empire, Syria). but the tide of battle shall turn and following their defeat shall victory and fortune sit on their helm, in some few years from hence. to Allah alone. The Ultimate Authority, are committed and submitted all matters and all affairs for consideration, decision and execution in the beginning and the end, past, present and time to come; there and then shall the Muslims rejoice beyond a common joy for the victory of the Romans. Allah gives mastery and triumph to whom. He will and He is AL-Aziz and AL-Rahim (the Almighty and the Merciful). Tide of battle

﴿في أدنى الأرض وهم من بعد غلبهم سيغلبون﴾ [الرُّوم: 3]

Dr Kamal Omar
in the land nearer, and they (i.e., the Romans), after their defeat, will soon be victorious

Dr Laleh Bakhtiar
in the closer region, and they, after being vanquished, will prevail

Dr Munir Munshey
In the neighboring lands! But after being defeated they will emerge victorious

Edward Henry Palmer
in the nighest parts of the land; but after being overcome they shall overcome

Farook Malik
in the neighboring land, but after this defeat, they will soon be victorious

George Sale
in the nearest part of the land; but after their defeat, they shall overcome the others in their turn

Maududi
in the neighbouring land; but after their defeat they shall gain victory in a few years