Rolling out her plan to defeat the Islamic State in the aftermath of the Paris terrorist attack, Clinton called for a "more effective coalition air campaign, with more allied planes, more strikes and a broader target set."
In her major policy speech on IS, Clinton told a New York audience that the US strategy should have three main elements.
A key obstacle standing in the way is a shortage of good intelligence about ISIS and its operations.
"So we need an immediate intelligence surge in the region, including technical assets, Arabic speakers with deep expertise in the Middle East and even closer partnership with regional intelligence services," she said.
A more effective coalition air campaign is necessary, but not sufficient, she noted. "We should be honest about the fact that to be successful, airstrikes will have to be combined with ground forces actually taking back more territory from ISIS."
"Like President Obama, I do not believe that we should again have 100,000 American troops in combat in the Middle East. That is just not the smart move to make here," she said.
"A terror pipeline that facilitates the flow of fighters, financing, arms and propaganda around the world has allowed ISIS to strike at the heart of Paris last week and an al Qaida affiliate to do the same at Charlie Hebdo earlier this year."
IS is working hard to extend reach, establish affiliates and cells far from its home base. And despite the significant setbacks it has encountered, not just with IS and its ambitious plans, but even Al Qaida, including the death of Osama bin Laden, they are still posing great threats to so many, she added.
