The Trident missile is a submarine-launched ballistic missile (SLBM) equipped with multiple independently targetable reentry vehicles (MIRV). Originally developed by Lockheed Missiles and Space Corporation, the missile is armed with thermonuclear warheads and is launched from nuclear-powered ballistic missile submarines (SSBNs).

A multiple independently targetable reentry vehicle (MIRV) is an exoatmospheric ballistic missile payload containing several warheads, each capable of being aimed to hit a different target. The concept is almost invariably associated with intercontinental ballistic missiles carrying thermonuclear warheads , even if not strictly being limited to ...

A submarine-launched ballistic missile (SLBM) is a ballistic missile capable of being launched from submarines. Modern variants usually deliver multiple independently targetable reentry vehicles (MIRVs), each of which carries a nuclear warhead and allows a single launched missile to strike several targets.

2019年5月15日 · The Trident II D5 SLBM is a three-stage, solid-fuel, inertially-guided missile with a range of 4,000 nautical miles capable of carrying multiple W76-Mk4/Mk4A or W88-Mk5 reentry bodies.

2017年8月28日 · Multiple Independently-targetable Reentry Vehicles (MIRVs) were originally developed in the early 1960s to permit a missile to deliver multiple nuclear warheads to different targets. In contrast to a traditional missile, which carries …

2024年4月23日 · The UGM-133 Trident II D5 is the U.S. Navy’s latest generation submarine-launched ballistic missile (SLBM). It improved upon earlier SLBMs including the Polaris, Poseidon, and Trident I C4. These programs, categorized as US Fleet Ballistic Missile technologies, began in the mid-1950s.

Today, the United States, the United Kingdom, and France use MIRV technology on SLBMs. China has MIRVed ICBMs, while Russia deploys both MIRVed ICBMs and SLBMs. The use of MIRVs on submarines is considered less destabilizing than on land-based missiles because the difficulty of finding nuclear submarines makes strikes against them unlikely.

2025年3月14日 · The Trident II (D-5) Missile, also known as the UGM-133A, is a U.S. inter-continental-range, submarine-launched, solid-propellant, MIRV-capable ballistic missile. It represents the sixth and latest generation of the U.S. Navy’s Fleet Ballistic Missile (FBM) Systems marking a significant development in the United States’ missile technology.

The United States deployed its first MIRVed ICBM -- the Minuteman III -- in 1970, and the first MIRVed SLBM -- the Poseidon -- in 1971. The USSR followed suit in 1975 (ICBM) and 1978 (SLBM), respectively. MIRV technology was developed first in the United States.

2016年7月25日 · 美国在准备与苏联进行战略武装限制谈判（SALT）的准备过程中，内部提出了一系列备选方案，用于设定美国自身的立场，参联会一直拒绝接受包含有“禁止MIRV”或“MIRV禁试”的方案。 1969年3月6日，尼克松总统下达第28号国家安全研究备忘录（NSSM-28），要求各有关部门在5月中旬前对战略武装限制谈判美国立场预案进行研究。 参联会对NSSM-28研究的成果文件给出了意见，认为禁止美国海基弹道导弹或陆基弹道导弹实现多弹头化，是会损害国家安全的。 …