Ask AI: what if the Roman Empire in year 2 CE attacked all of the world(excluding the Americas) at the same time?

It is highly unlikely that the Roman Empire of 2 CE was in a position to launch a simultaneous attack across the entire planet. At the time, the Roman Empire only spanned the Mediterranean region and parts of Europe. In addition, the Roman army was not particularly advanced in terms of military technology; it relied mainly on infantry and cavalry rather than large-scale siege engines or naval vessels. As a result, it is doubtful that the Roman Empire would be able to sustain a global attack of such magnitude.