number of - The Iraqi army was broken by the IS statements in Tal Afar.
Last week, Iraq had already given an important signal to IS: surrender, or die. The army now adds word to word. The statements of IS broke out and the army has reached the old city, so it now has three quarters of the city under control.
Tal Afar is in the former 'country' that Islamic State was ever, but it can now be considered lost since the acquisition of Mosul by Iraqi troops. That city was taken over after a nine-month siege. As a consequence, the city is largely ruined.
In Mosul many residents fled. The same fate is Tal Afar: the original population of 200,000 inhabitants is still around 5 or 10 percent.
IS seems to be further driven. The so-called Syrian Democratic Armed Forces, a US-backed army, have announced to go to the province of Deir ez-Zor. That area is important as an important home for IS. The Syrian Democratic Armed Forces are fighting especially in Raqqa.