Level 3 Emergency declared by UN
1.2 million internally displaced
Genocidal attacks on Yazidis - many apparently murdered, raped, many more fleeing and many of those dying of thirst/exposure, including children. Humanitarian help being begged. Other minorities have already fled/are fleeing.
Elimination/exile of Christians - Mohammed-era tax being levied as in Syria, Christian homes and businesses being marked, 'Convert, leave or die'. Reports of beheadings, crucifixions, and even worse. Mosul is without Christians for the first time in two-thousand years.
The USA, via air-strikes and action by Special Forces are reporting they have broken the siege on Mount Sinjar where many Yazidis had fled.
The UK have apparently sent in the SAS in order to scout before an evacuation attempt.
The plain goal of ISIS (now IS, apparently) is the formation of a hard-line Islamic State, essentially a new Islamic nation-state under Sharia law.
A former Australian army officer warned about a 100-year war against radical Islam - "Former Army chief Peter Leahy warned last weekend that the war against Islamic terrorism could last 100 years. And on Monday he said any doubts he might have had were removed by the image of the seven-year-old Australian holding up the severed head: “That child could live to be 70, and that is most of the rest of this century.”"