"The proposed sale will enhance Israel's capability to meet current and future threats by improving its ability to defend Israel's borders, vital infrastructure, and population centers," the US Defense Security Cooperation Agency (DSCA) said in a statement.

"The United States is committed to the security of Israel, and it is vital to US national interests to assist Israel to develop and maintain a strong and ready self-defense capability," it added.

The State Department approved the possible sale and the DSCA has provided the required notification to the US Congress, which still needs to sign off on the transaction.

Israel launched an unprecedented air campaign on June 13 targeting Iranian nuclear sites, scientists and top military brass in a bid to end the country's nuclear program, which Tehran says is for civilian purposes but Washington and other powers insist is aimed at acquiring atomic weapons.

Trump had spent weeks pursuing a diplomatic path to replace the nuclear deal with Tehran that he tore up in 2018 during his first term, but he ultimately decided to take military action, ordering US strikes on Iranian nuclear sites.

A ceasefire brought the war to a halt last week, but Israeli Prime Minister Benjamin Netanyahu has vowed to prevent Tehran from ever rebuilding its nuclear facilities, raising the prospect of a future conflict.