Homeland defense has entered a new era with the proliferation of nuclear-armed intercontinental ballistic missiles and President Donald Trump's Golden Dome proposal aims to invest in protecting against modern threats.

Investing.com -- President Donald Trump’s “Golden Dome” missile defense plan, unveiled May 21, promises near-total protection for the United States from a wide range of airborne threats. The $175 billion initiative, intended to span three years, aims to defend against ICBMs, cruise missiles, hypersonic weapons and drones.

President Donald Trump has proposed building a massive antimissile system in space that could enrich Elon Musk if it materializes. But experts say the project’s feasibility remains unclear.