June 13 (UPI) -- 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 the United States against modern threats.

Trump shared some details about the Golden Dome missile defense system last month in the Oval Office, estimating it will cost about $175 billion to bring online during his term in office. Patrycja Bazylczyk, program manager and research associate at the Center for Strategic and International Studies' Missile Defense Project, told UPI it presents an opportunity to take a new approach to defense.

"The Golden Dome opportunity really calls attention to the fact that we need to reorient our missile defense policy away from the sort of traditional threats that we've been forming our missile defense policy on for the past two decades -- and mostly against [intercontinental ballistic missiles," Bazylczyk said.

"We're in an era of great power competition. Our adversaries China and Russia have next-generation weapons that can threaten the U.S. homeland. We need to prime our defenses to defend against these next generation threats."

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