What Is 2021-2023 North Korean missile tests

Overview

From 2021 to 2023, North Korea dramatically escalated its ballistic missile testing program, conducting more launches than in any previous three-year period. These tests included short-range tactical missiles, intermediate-range systems, and advanced intercontinental ballistic missiles (ICBMs), signaling a major leap in technological capability.

The regime under Kim Jong Un used these tests to demonstrate military strength, pressure international sanctions, and assert its nuclear deterrent. Despite global condemnation and UN Security Council resolutions, North Korea continued refining its arsenal with increasing frequency and sophistication.

• 2021: North Korea conducted 15 missile tests, including the first known launch of a Pukguksong-8 solid-fuel missile in October, marking a shift toward faster-launching systems.
• 2022: A record year with 31 separate missile events, including the first flight test of the Hwasong-17 ICBM in March, capable of reaching the continental United States.
• 2023: At least 34 missile launches occurred, including the inaugural test of the Hwasong-18 solid-fuel ICBM in April, a major advancement in survivability and response time.
• Geographic reach: Missiles were launched from various sites across North Korea, including inland and mobile platforms, with many flying over or near Japan, triggering public alerts.
• International response: The U.S., South Korea, and Japan increased joint military drills, while the UN attempted to pass stronger sanctions, blocked by Russia and China in late 2022.

Missile Technology and Testing

North Korea's missile advancements during this period reflect a strategic push toward survivable, rapid-response nuclear delivery systems. Each test provided data on range, accuracy, propulsion, and re-entry performance.

• Ballistic trajectory: Most tests followed a high-angle 'lofted' path to avoid neighboring countries, allowing evaluation of re-entry vehicles under extreme heat and stress.
• Solid-fuel propulsion: The Hwasong-18, tested in April 2023, uses solid fuel, enabling faster launch preparation and greater mobility compared to liquid-fueled systems.
• Range capability: The Hwasong-15 and Hwasong-17 ICBMs have estimated ranges exceeding 15,000 km, potentially covering all of the continental U.S.
• Multiple warheads: North Korea claimed development of MIRV (Multiple Independently Targetable Re-entry Vehicle) technology, tested in 2023 with the Hwasong-18 launch.
• Submarine-Launched Ballistic Missiles (SLBMs): The Pukguksong series, tested in 2021 and 2023, demonstrated improved underwater launch capabilities from new ballistic missile submarines.
• Maneuverable re-entry vehicles: Some tests included hypersonic glide vehicles, designed to evade missile defense systems by changing course during descent.

Comparison at a Glance

The table below compares key missile systems tested by North Korea from 2021 to 2023, highlighting advancements in range, fuel type, and launch method.

These developments show a clear shift toward solid-fuel systems and mobile platforms, enhancing North Korea’s ability to launch quickly and evade pre-emptive strikes. The progression from liquid to solid fuel represents a generational leap in missile readiness and operational flexibility.

Why It Matters

The surge in North Korea’s missile testing from 2021 to 2023 has far-reaching implications for regional stability, arms control, and global security. Each successful test erodes the effectiveness of existing missile defense systems and emboldens the regime’s strategic posture.

• Deterrence strategy: North Korea views its nuclear and missile capabilities as essential to regime survival, deterring external intervention or regime change efforts.
• Regional militarization: Japan and South Korea have increased defense spending and acquired new missile systems in response, heightening regional tensions.
• U.S. security commitments: The tests reinforce the need for extended deterrence, including nuclear umbrella assurances and THAAD missile defense deployments.
• Non-proliferation concerns: Advancements may encourage other states to pursue similar capabilities, undermining global non-proliferation efforts.
• Diplomatic deadlock: With no active negotiations since 2019, the tests signal North Korea’s intent to operate outside international norms.
• Technological spillover: Solid-fuel and MIRV technologies could eventually be shared with adversarial states or non-state actors, increasing global risk.

As North Korea continues refining its arsenal, the international community faces growing challenges in restoring dialogue or containment, making these tests a critical issue for global security in the 2020s.