On first review this makes no sense. Why would any military officials give so much detailed and advanced notice of the intents to attack ISIS in Mosul Iraq?
WASHINGTON (AP) — The operation to retake Iraq’s second largest city from Islamic State militants will likely begin in April or May and will involve about 12 Iraqi brigades, or between 20,000 and 25,000 troops, a senior U.S. military official said Thursday.

Laying out details of the expected Mosul operation for the first time, the official from U.S. Central Command said five Iraqi Army brigades will soon go through coalition training in Iraq to prepare for the mission. Those five would make up the core fighting force that would launch the attack, but they would be supplemented by three smaller brigades serving as reserve forces, along with three Peshmerga brigades who would contain the Islamic State fighters from the north and west.
The Peshmerga are Kurdish forces from northern Iraq.
The official said there also would be a Mosul fighting force, largely made up of former Mosul police and tribal forces, who would have to be ready to go back into the city once the army units clear out the Islamic State fighters.
Included in the force would be a brigade of Iraqi counterterrorism forces who have been trained by U.S. special operations forces. The brigades include roughly 2,000 troops each. The official was not authorized to discuss the operation publicly and spoke on condition of anonymity.
Military leaders don’t often disclose as many details of an operation before it takes place, but in some cases it can have an impact on the enemy, trigger a reaction or even prompt some militants to flee before the assault begins. (read more)