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Bill

S 4600

South China Sea Strategy Act of 2026

119th Congress Introduced by John Curtis and 1 co-sponsor

The bill creates a formal U.S. diplomatic engagement strategy in the South China Sea to promote a rules-based resolution, coordinate allies, and deter unilateral actions.

Introduced in Senate
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Bill Summary · S 4600

Summary of Bill: South China Sea Strategy Act of 2026 (S.4600)

Purpose and intent

  • Establishes a formal U.S. diplomatic engagement strategy for the South China Sea.
  • Aims to promote a rules-based resolution of maritime disputes, safeguard freedom of navigation and overflight, and coordinate with allies and partners to protect U.S. interests and regional stability.

Key provisions and changes

  1. Policy framework (Section 2)

    • Reaffirms U.S. goals:
      • Protect freedom of navigation, overflight, and unfettered commerce in the South China Sea in line with international law.
      • Pursue a rules-based approach to maritime disputes.
      • Counter unilateral actions by the PRC attempting to change the status quo and undermine regional stability.
      • Engage with allies and partners in a coordinated manner to address South China Sea issues and crises, including safeguarding U.S. citizens’ safety in the region.

  2. Diplomatic engagement strategy (Section 3)

    • General requirement (a): Within 180 days of enactment, the Secretary of State (in consultation with the Secretary of Defense) must submit a Strategy for Diplomatic Engagement on the South China Sea to the relevant congressional committees.
    • Elements of the Strategy (b):
      • Define overarching goals for engagement with littoral states, allies, and partners across security, diplomatic, legal, and economic domains.
      • Designate an office with lead responsibility to coordinate each goal.
      • Evaluate existing State Department mechanisms, programs, and forums, identify gaps in engagement.
      • Detail plans to deepen bilateral engagement with each littoral state (priorities identified in prior engagements).
      • Plan for more frequent collective engagements with littoral states and additional allies/partners on topics such as:
      • Bolstering defense capabilities
      • Maritime law enforcement capacity and governance
      • Responding to gray-zone tactics and illegal, unreported, and unregulated (IUU) fishing
      • Managing maritime territorial disputes to reduce crisis risk
      • Crisis management and response mechanisms to avoid unnecessary provocations
      • Resilience to foreign influence and coercion
      • Economic development and resilience to economic coercion
      • Addressing other factors that threaten U.S. national interests in the region
      • Plans for interagency and international coordination on crisis management for scenarios short of war.
    • Classification (c): The strategy must be submitted in unclassified form, though a classified annex may accompany it.

  3. Strategy execution (Section 4)

    • Resource and program planning (a): By 360 days after enactment, the Secretary of State must identify and submit to Congress any required programs, policies, or budgetary resources to implement the strategy for fiscal years 2027–2029.
    • Briefing (b): Within 30 days of submitting the resources assessment, the Secretary must brief Congress on implementation.

  4. Definitions (Section 5)

    • Clarifies:
      • “Appropriate congressional committees” = Senate Foreign Relations Committee and House Foreign Affairs Committee.
      • “Littoral states” = Brunei, Indonesia, Malaysia, the Philippines, and Vietnam.

Who/what would be affected

  • U.S. State Department (primary vehicle for the strategy) and the Department of Defense (in consultation) for interagency coordination.
  • Littoral states in Southeast Asia (Brunei, Indonesia, Malaysia, the Philippines, Vietnam) and potential involvement of additional allies and partners.
  • Congress, which would receive the strategy within 180 days and subsequent implementation briefings and budget/resource plans for 2027–2029.

Procedural and timeline highlights

  • Introduction date: May 20, 2026.
  • Immediate action: Referred to the Senate Foreign Relations Committee.
  • Key deadlines:
    • Within 180 days: Submit the South China Sea Diplomatic Engagement Strategy.
    • Within 360 days: Identify and propose necessary programs, policies, and budget for 2027–2029.
    • Within 30 days after the resource assessment: Brief Congress on implementation.
  • The strategy is to be unclassified publicly, with a potential classified annex for sensitive details.

Potential impact

  • Creates a formal, centralized framework for U.S. diplomatic efforts in the South China Sea.
  • Encourages proactive engagement and coordination across federal agencies and international partners.
  • Aims to deter unilateral actions by the PRC and to reduce crisis risks through better crisis management and governance.
  • Could influence defense and economic policy discussions with littoral states and allies by outlining shared goals and resource needs.

Compiled from official sources — confirm details with the bill’s official record.

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