Which "Arab armies"? Were you expecting 30 million big Iraq to defeat the undisputed superpower (USA) that could turn your country into ashes in a few minutes if they wanted?
In fact the Iraqi resistance (which was mostly confined to the Iraqi Sunni Arab areas) inflicted more casualties on the American soldiers than the Afghans have ever done in Afghanistan in 13 years of war. In a much easier terrain for ambushes etc.
Yes and Arabs created 3 of the 11 largest empires in human history. More than any other single ethnicity in the top 15.
Now tell me about your ancestors military endevaours before writing more stupid posts.
Your "30.000 Pakistani troops" nonsense is what it is. Nonsense.
Change your username.