But she was understandably wary of talking about areas in which she and Obama split — namely, on bedrock issues of war and peace, where Clinton’s more activist philosophy had already collided in unpredictable ways with her boss’s instincts toward restraint. She had backed Gen. Stanley McChrystal’s recommendation to send 40,000 more troops to Afghanistan, before endorsing a fallback proposal of 30,000 (Obama went along with that, though he stipulated that the soldiers would begin to pull out again in July 2011, which she viewed as problematic). She supported the Pentagon’s plan to leave behind a residual force of 10,000 to 20,000 American troops in Iraq (Obama balked at this, largely because of his inability to win legal protections from the Iraqis, a failure that was to haunt him when the Islamic State overran much of the country). And she pressed for the United States to funnel arms to the rebels in Syria’s civil war (an idea Obama initially rebuffed before later, halfheartedly, coming around to it).
That fundamental tension between Clinton and the president would continue to be a defining feature of her four-year tenure as secretary of state. In the administration’s first high-level meeting on Russia in February 2009, aides to Obama proposed that the United States make some symbolic concessions to Russia as a gesture of its good will in resetting the relationship. Clinton, the last to speak, brusquely rejected the idea, saying, “I’m not giving up anything for nothing.”