According to Meghan O'Sullivan, U.S. action in Syria may have implications for Iran and its nuclear program.

Gregory Koblentz weighs the U.S. foreign policy options toward Iran.

Under reciprocal treaty obligations, host nations are obligated to provide security for the diplomatic facilities of sending states. However, instances in which host nations have been unable or not fully committed to fulfilling this responsibility have sometimes left U.S. facilities vulnerable, especially in extraordinary circumstances. U.S. facilities therefore employ a layered approach to security including not only the measures taken by a host country, but also additional, U.S.-coordinated measures, to include armed Diplomatic Security agents, hardened facilities, U.S.-trained and/or contracted local security guards, and sometimes U.S. Marine Security Guard detachments (whose principal role is securing classified information).

North Korea, formally called the Democratic People's Republic of Korea (DPRK), remains a top security concern for the United States, despite its moribund economy. The DPRK poses a serious potential military threat to its neighbors and to U.S. military bases and allies in the Pacific.

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Micah Zenko explains why the speech made by Harold Koh, former state department legal adviser, earlier this week is nothing more than a reiteration of the "fundamental myth of the Obama administration's targeted killing program."

The authors examine the lack of understanding of the effectiveness of enforcement efforts in preventing illegal immigration to the United States.

Both the Bush and Obama administrations have concluded that the use of drones to kill al-Qaeda leaders is permissible under both U.S. domestic law and international law.

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President Barack Obama and South Korean President Park Geun-hye held a press conference on May 7, 2013. They discussed trade and threats from North Korea.

The Administration has given the Syrian opposition more than six hundred and fifty million dollars in nonmilitary aid, but Obama has consistently opposed arming the rebels or intervening militarily on their behalf. The United States has taken a tenuous position: not deep enough to please the rebels or its allies in Europe, or to topple the regime, or to claim leadership in the war's aftermath—but also, perhaps most important, not so deep that it can't get out.

Mandated by the FY2000 National Defense Authorization Act, the Department of Defense's annual report discusses China's military and security strategies, technological advancements in its capabilities, military doctrine, and security issues in the Taiwan Strait.

The Internet's growing role in economies and societies also poses new threats. The time has come for states and private partners to set global norms for web conduct, says expert Andrea Renda.

Only by getting its own house in order will the United States be in a position to set an example other societies will want to emulate, argues CFR President Richard N. Haass. And only by fixing itself will the United States possess the resources necessary to discourage or deal with the emergence of a serious political and military competitor.

Under the security cooperation agreement called the Merida Initiative, the United States provides military and law enforcement assistance to the Mexican government in support of efforts to combat drug cartels and organized crime. The United States and Mexico jointly developed this agreement in response to a substantial increase in drug-related criminal activity and violence on both sides of the border.

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U.S. missile defense in the twenty-first century is focused on emerging threats from North Korea and Iran, but critics say these systems are too costly and largely unproven, explains this Backgrounder.

Micah Zenko weighs the options on a United States intervention in Syria.

The French government published a white paper on June 17, 2008, which, according to its introduction, "substantially redefines French strategy in a 15-year perspective, embracing both defense and national security." On April 29, 2013, the government released its fourth defense reform paper, which freezes the budget, further reduces personnel and equipment in addition to 2008 cuts, and focuses on intelligence gathering, cyberwarfare, and drones.

Chairman of the Joint Chiefs of Staff General Martin Dempsey gave these remarks at the National Institute for Defense Studies in Tokyo on April 26, 2013.

Chairman of the Joint Chiefs of Staff General Martin Dempsey held this town hall meeting at the Yokota Air Base in Japan on April 25, 2013. He discussed the U.S. strategy to "rebalance" with the Asia Pacific, effects of sequestration, officer character reviews, and U.S. global power.

The Obama administration has increasingly relied on drones in its counterterrorist operations. And, as I explain in a recent CFR report, U.S. special operations forces are doing more things in more places than ever before. The heavy reliance on both drones and unilateral commando raids needs to be reassessed.

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