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1. Campaign of Denial: Strengthening Simultaneous Deterrence in the Indo-Pacific and Europe

Author:
Becca Wasser
Publication Date:
08-2023
Content Type:
Special Report
Institution:
Center for a New American Security (CNAS)
Abstract:
The United States faces an unprecedented challenge: simultaneously deterring large-scale conventional aggression by two nuclear-armed powers. The nation will need to deter these major adversaries from overt aggression in the near term in two primary, yet distinct, regions: China in the Indo-Pacific and Russia in Europe. However, the U.S. military is unprepared to concurrently meet the challenges posed by China and Russia. These challenges have become more pronounced as Beijing continues its ambitious military modernization and Moscow continues to threaten European security despite its currently diminished military strength. Effective simultaneous deterrence requires the United States to reembrace the basic principles of deterrence to reverse unfavorable trends in military power that are eroding long-standing U.S. warfighting advantages. It necessitates U.S. forces to project power into far-flung regions that are contested by China and Russia to uphold America’s extended deterrence commitments to its allies and partners. To do so, the Pentagon must shift from previous approaches designed to deter opportunistic aggressors and respond to crises. While the U.S. Department of Defense (DoD) has realigned its strategy to focus on great-power deterrence, it has faced hurdles in strategy implementation that have stymied changes needed to organize more effectively for simultaneous deterrence. This is due in part to a sizable mismatch between strategy and resources. The U.S. military does not have the kinds and numbers of forces required to simultaneously deter China in the Indo-Pacific and Russia in Europe from conventional conflict. This deficit is especially telling in two priority scenarios: an invasion of Taiwan by China, and a Russian invasion of the Baltics. American forces lack the modernized capabilities, necessary posture, right levels of readiness, and familiarity with executing the types of warfighting missions needed to meet the current challenge.1 The balance between meeting global demands and responding to persistent threats while shifting to emphasize deterrence in the Indo-Pacific and Europe is precarious. Concentrating on strategic priorities requires accepting risk in other regions, as the United States, with fewer forces and resources stretched around the globe, moves capabilities and forces to priority theaters. A new approach to simultaneous deterrence is needed. The Biden administration has outlined the concept of campaigning as a key component of peacetime deterrence. This concept seeks to sequence and link military activities so they intentionally counter coercion by priority adversaries. The intent is to enable the Pentagon to respond to challenges posed by China and Russia, while still meeting global demands. But the concept is currently ill-defined and expansive, and its broad interpretation does not help the DoD meet its deterrence requirements or align strategy and resources. Instead, campaigning runs the risk of engaging U.S. forces in activities that do not contribute to or are counterproductive to deterrence. A failure to curb these activities will result in either the need to expand force size, or the hindrance of modernization efforts.
Topic:
Security, Military Affairs, and Deterrence
Political Geography:
Europe, United States of America, and Indo-Pacific

2. Dangerous Straits: Wargaming a Future Conflict over Taiwan

Author:
Stacie L. Pettyjohn, Becca Wasser, and Chris Dougherty
Publication Date:
06-2022
Content Type:
Special Report
Institution:
Center for a New American Security (CNAS)
Abstract:
Until recently, U.S. policymakers and subject matter experts have viewed the People’s Republic of China’s (PRC’s) forcible unification with Taiwan as a distant threat. But the mix of rapid Chinese military modernization, a narrow window for localized near-parity with the U.S. military, and growing pessimism about the prospects for peaceful unification may lead the PRC to perceive that it has the ability to pursue a successful operation against Taiwan. Beijing’s lessons learned from Russia’s invasion of Ukraine could prompt the People’s Liberation Army (PLA) to adjust its war plans for Taiwan to become more effective and deadly. Coupled together, these developments may suggest an accelerated timeline for seizing Taiwan. It is therefore urgent that the United States, in conjunction with its regional allies and partners, identify ways to deter the PRC from invading Taiwan and prevent a future conflict. To do so, the Gaming Lab at CNAS, in partnership with NBC’s Meet the Press, conducted a high-level strategic-operational wargame exploring a fictional war over Taiwan, set in 2027. The wargame sought to illuminate the dilemmas that U.S. and Chinese policymakers might face in such a conflict, along with the strategies they might adopt to achieve their overarching objectives. The game was intended to produce insights as to how the United States and its allies and partners could deter the PRC from invading Taiwan and could better position themselves to defend Taiwan and defeat such aggression should deterrence fail.
Topic:
Security, Defense Policy, Conflict, and War Games
Political Geography:
China, Taiwan, Asia-Pacific, and United States of America

3. Risk and Responsibility: Managing Future Iranian Weapons of Mass Destruction Threats

Author:
Becca Wasser and Jennie Matuschak
Publication Date:
05-2022
Content Type:
Special Report
Institution:
Center for a New American Security (CNAS)
Abstract:
Washington is reimagining its global role, leading the U.S. Department of Defense (DoD) to make difficult choices about priorities, resources, and risk to better address the long-term “pacing challenge” posed by China. To do so, the United States plans to accept risks in the Middle East and against future Iran threats. Iran’s possession and potential use of weapons of mass destruction (WMDs)—specifically, its nuclear program, chemical weapons, and biological agents—pose the greatest threat to U.S. interests and Washington’s ability to accept risk in the region. But how Iran might leverage WMDs to threaten U.S. interests and upend Washington’s plans to make trade-offs in global responsibilities is unclear, while the risks of failing to address these challenges remain high. As a result, the DoD and its component organizations, such as the Defense Threat Reduction Agency (DTRA), must enhance their understanding of the threat posed by Iran’s nuclear, chemical, and biological capabilities and the escalation dynamics surrounding Iranian WMDs during crisis and conflict. By doing so, the United States can better accept risk in the Middle East and revise its global priorities while still protecting core U.S. interests. To improve the DoD’s understanding of future Iranian WMD-related threats and escalation dynamics, the Gaming Lab at the Center for a New American Security (CNAS) conducted a series of three virtual strategic-operational tabletop exercises (TTXs) exploring future Iranian nuclear, chemical, and biological weapons use. The TTXs indicated that even if Iran acquires a nuclear weapon, the likelihood the regime will use it is low. Instead, the regime may be more likely to use chemical and biological weapons to escalate conflict. Moreover, there are significant asymmetries between American and Iranian views of conflict timelines, escalation redlines, and risk tolerance, all of which make it difficult to offer and signal credible ways to de-escalate a crisis. Differences between Washington’s risk acceptance and that of its regional partners—Israel, in particular—further complicate U.S.-Iran interactions. The TTXs aimed to enable the United States to identify where and how it might mitigate the risk it must accept to better marshal resources in support of the department’s strategic guidance. Accepting greater risk against Iran and in the Middle East more broadly means shifting U.S. strategic priorities in the region. This shift has the potential to unsettle allies and partners, and may possibly embolden Iran in the near term, but such tough choices must be made if the United States wishes to prioritize other long-term threats that may be of greater impact to U.S. security, such as China.
Topic:
Security, Defense Policy, Weapons of Mass Destruction, Weapons, and Risk
Political Geography:
Iran, Middle East, and United States of America