what was the Abbasid Role in An Lushan rebellion?

what was the Abbasid Role in An Lushan rebellion? , Also what was the role of Muslim warriors sent by the caliphates to china in different occasions?, according to my Info Harun Al Rashid sent a battalion of Muslim warriors who acted as Chinese empiral guards, how true is that??........

yes I think that is true, but what I mean is I've read something from before that the Abbasid sent a 4000 warrior battalion to the Tang emperor then to stop the An Lushan rebellion and that that exact battalion settled there and were the core of Arab community in china...that's what I need confirmation on....

the war between the tang and Abbasid over central Asia had for sure negative effect on the Tang dynasty but it was limited since the only battle in history between the Arabs and the Chinese was the battle of Talas which on the Chinese part was led by a Korean general and on the Arabian part I'm not really sure that the Army was even fully Arab,I think the battles for domination on central Asia was fought by basically by central Asians, And Maybe the An Lushan Rebellion made the Chinese turn their eyes towards him and give up central Asia which none of the Chinese and the Abbasid totally won in the end........

So to sum it up (sorry for longing) Is it true on both sides ( the Chinese and the Abbasid) that the Abbasid sent a small army to the Tang Emperor that helped him stopping the An Lushan rebellion ?

Originally posted by kaznder the war between the tang and Abbasid over central Asia had for sure negative effect on the Tang dynasty but it was limited since the only battle in history between the Arabs and the Chinese was the battle of Talas which on the Chinese part was led by a Korean general and on the Arabian part I'm not really sure that the Army was even fully Arab,I think the battles for domination on central Asia was fought by basically by central Asians, And Maybe the An Lushan Rebellion made the Chinese turn their eyes towards him and give up central Asia which none of the Chinese and the Abbasid totally won in the end........

The Tang never gave up Central Asia after 755. Chinese garrisons in central Asia lasted down to to the 790s by fighting off Tibetan encroachment. Talas was of pinprick importance in the history of Central Asia. Tang power in central Asia actually grew after the battle. By 753, Tang conquered Kashmir and had its moment of having the largest territory in Central Asia up to that time.