Mehmed Ali invaded Syria after the Porte ignored his complaints.

Evidence

See, for example, S/5/51/2/1 on 5 s 1247/9 January 1832, from Mehmed Ali to the Sublime Porte in which he says that he had undertaken this dramatic step only after he had repeatedly complained to the Porte of ‘Abdallah Pasha’s activities and was not answered; “on the contrary I was completely forgotten (nesyen mensiyen)”. — Khaled Fahmy, All the Pasha_s Men_ Mehmed Ali, his…, 380

Categorization

• XREF: Directly serves the reader’s goal of understanding why Mehmed Ali expanded militarily - the Porte’s indifference as a trigger for invasion.