U.S.-led airstrikes in Syria, carried out with the help of the U.K. and France, have "significantly crippled" the chemical-weapon capabilities of President Bashar al-Assad, the Pentagon believes, according to spokesperson Dana White. But whether U.S. action stops with Friday's response depends on the Assad regime's next moves, White said Saturday. The U.S. mission in Syria remains defeating known terrorist cell ISIS, and is not a call for regime change, but the U.S. will not stand by while Assad attacks "innocent Syrian people," White said. Joint Staff Director Lieutenant General Kenneth McKenzie said that the U.S. did not specifically coordinate ahead of the strikes with Assad-ally Russia. He was replying to a question asking if Russia was warned not to fire back. Russia, and in fact, Assad, were warned ahead of time that targeted strikes on chemical facilities would ensue in response to suspected chemical-weapons use on civilians as a seven-year civil war rages in Syria.