Delegate and Annihilate is working against ISIS

. But less than four months after Trump took office, Mattis said the operational and tactical difference has been clear.

Two significant changes resulted from President Trump's review of our findings.
1 he delegated authority to the right level to aggressively and in a timely manner move against enemy vulnerabilities.
2. he directed a tactical shift": surround ISIS fighters, instead of just pushing them out of a given territory.

The changes can be described as effective delegation and annihilation.

There has been no change to our continued extraordinary efforts to avoid innocent civilian casualties, despite needing to go into populated areas," he said. And American troops are still under instruction to halt at the last point of cover and concealment, letting local forces go in for the direct assault.

Iraqi Security Forces (ISF) surged in northwest Mosul in a bid to clear the city prior to Ramadan, anticipated to begin on May 26. Emergency Response Division (ERD) and Federal Police (FP) units joined 9th and 15th Iraqi Army Division units in northwest Mosul on April 28. The combined forces recaptured the neighborhoods of Mushairfa and 30 Tamouz, and are fighting to seize the denser neighborhoods of Harmat, 17 Tamouz, and Hawi Kanisa as of May 11, 2017.

May 18, After seven months of fighting, Islamic State of Iraq and the Levant (Isil) is hemmed into a ever shrinking pocket on the west bank of the Tigris river.

May 19, Iraqi government forces have wrested full control over two strategic neighborhoods in the western side of Mosul as they press ahead with operations to drive Daesh Takfiri terrorists out of the country's second largest city.