Thus began a process of constant iteration, where each version of the product saw the product getting simpler and more applicable to a broader section of the population.

FORBES: The Importance of 'Pivoting'

The Peshmerga, backed by U.S. Special Forces, pushed into Kirkuk after a steady northern campaign that saw the Kurds take over nearly 300 villages following a near-constant bombing campaign by coalition aircraft.

CNN: U.S. reinforcements arrive in Kirkuk