A pair of US lawmakers on opposite sides of the aisle introduced a measure that would allow President Donald Trump to provide Israel with B-2 stealth bombers and 30,000-pound bunker buster bombs if Iran seeks to develop a nuclear weapon.

“Iran is the world’s leading state ‘sponsor of terror’ and is responsible for the deaths of thousands of Americans. As Iran rebuilds its nuclear programme, we must maintain maximum deterrence," Democratic Rep. Josh Gottheimer from New Jersey wrote Wednesday on X.

He said his Bunker Buster Act with New York Republican Mike Lawler will give Israel the tools it needs to deter Iranian "aggression and take out their underground nuclear sites — strengthening US national security."

It would allow Trump to "take actions to ensure Israel is prepared for all contingencies if Iran seeks to develop a nuclear weapon."

The US dropped six bunker-buster bombs on the Fordow nuclear facility on June 22 and launched dozens of submarine-based cruise missile attacks on two other sites in Natanz and Isfahan as part of its campaign against Iran’s nuclear programme.

A sixth round of talks between the US and Iran was scheduled for June 15, but Israel launched air strikes on Iranian military, nuclear, and civilian sites on June 13.

The 12‑day conflict between Israel and Iran ended with a US-sponsored ceasefire that took effect June 24.

Iran's nuclear programme was "degraded" by one to two years in the air strikes, the Pentagon said Wednesday.