Is Morta Meaned Against the Romans?

The battle of mota did not take place at bosra. Nor did they attack the actual army of bozra. They attacked the lasanis right? So morta is a prelude followed by tabuk, in which he actually did participate. But there was no war. As will come to tabuk later on, tabuk was also meant against the romans - and they didn't show up. The process o the sahaba showed up and they didn’t show up. In fact, the very last expedition that sent emama iben zad ad al-Zubaka as you remember too, said how can i turn it back? And then eventually