but of course, the war in ethio, made it easier for sudan to do so, no?
and of course, sudan and tplf had a good relationship, so sudan may have not seen it as being worth the conflict?
lol yeah man, oromo as far as I know, do not have border disputes with sudan.
Sudan was going to take AlFashaqa back either way, with or without the war in Ethiopia. In 2017 after a similar ambush, the army was ready to go in and clear the area. However, at that time Sudan was in the process of removing sanctions and improving relations with the west. A political decision from Bashir government said the timing was not right to damage the process. This had angered generals including Burhan himself.
Even in November last year, the Sudanese army increased its presence in the area because tens of thousands of Ethiopian refugees were pouring in. Taking back the area was not on the agenda. As part of their daily routine of patrolling the border, a patrol unit was ambushed by the Ethiopians. That was the trigger and since then, 90% of the area was cleared.
It is true that Bashir and Zenawi had good relations. I do think that on a good day, Sudan would side with TPLF politically and militarily. However, with the current economic and political crisis in Khartoum, there is no political will to do anything but secure the borders.