To move troops quickly, good roads were needed, and the Romans were skilled at building them.
وَكَذٰلِكَ كَانَ ٱلسَّفَرُ بَحْرًا ،‏ ذٰلِكَ أَنَّ ٱلْأُسْطُولَ ٱلرُّومَانِيَّ أَبْعَدَ شَبَحَ ٱلْقَرَاصِنَةِ .‏