FASTER, PLEASE: The US Strategy of Annihilation and Humiliation.

In his first interview as secretary of defense, James Mattis outlined the United States’ strategy. Mattis’ words carry weight because he is one of the few subordinates U.S. President Donald Trump seems to trust implicitly and to whom Trump has delegated significant responsibility. In the interview, Mattis said the war of attrition – pushing enemies out of their locations rather than destroying them completely – failed to produce the desired outcome. The U.S. will now fight a war of annihilation and humiliation against the enemy, which is not just IS but radical Islamism in general. Mattis expects the war to be a long fight, but he also expects to win.

Mattis pointed to the battles for Mosul and Tal Afar as models for how these tactics will be implemented in other places. In both cases, forces on the ground, some with U.S. help, have surrounded IS targets to try to prevent Islamic State militants from retreating and foreign fighters from leaving the battlefield to return home. The forces then advance and clear these cities block by block, a hard task that takes time. This is what Mattis described as annihilation. The Islamic State’s greatest strength on the battlefield has been its ability to retreat and regroup, and the goal of annihilation is to destroy that strength. But this strategy comes with a high price. Iraq sent its best trained and equipped fighters into Mosul first, and casualty rates were reportedly around 50 percent for some units.

Speed is an often overlooked force multiplier. The Marines used it to great battlefield (and propaganda) effect in Second Fallujah, but the battle to retake Mosul has been going on for months.