WATCH: Hegseth says U.S. military has done its part 'for now' after Trump agrees to 2-week Iran ceasefire

Defense Secretary Pete Hegseth said Wednesday during a news conference that the Pentagon "for now, has done its part" on Iran.

Watch the full news conference in the video player above.

"We stand ready in the background to ensure Iran upholds every reasonable term," he said.

WATCH: Trump agrees to 2-week ceasefire, backs down from threats to destroy Iran's infrastructure

Hegseth praised the "bravery and sheer guts" of the U.S. military and said the operation had hobbled Iran's regime. He said nobody makes a better deal than President Donald Trump.

Trump administration once again shifts the objectives for the war

Dan Caine, chairman of the Joint Chiefs of Staff, said in the news conference that the U.S. military had three objectives in Iran: to destroy Iran's ballistic missile and drone capabilities, to destroy its navy, and to destroy its defense industrial base.

The president and members of his administration have offered varying objectives throughout the 5 1/2-week war and have shifted them throughout, despite claiming they have not changed.

Trump has at times named five objectives, but has changed them.

WATCH: How Iran is reacting as Trump pulls back from threat to wipe out civilization

Other objectives have included eliminating Iran's air force, blocking Iran's path to a nuclear weapon, cutting off support for its proxy groups and protecting allies in the Middle East.

Hegseth: Iran 'got lucky one time in 40 days'

"We own their skies," Hegseth told reporters Wednesday, even though Iranian forces shot down two U.S. military jets on Friday.

Largely repeating his claims that Iran had been badly defeated, Hegseth said the U.S. and Israel had achieved a "capital 'V' military victory" and said Iran's military no longer poses a significant threat to U.S. forces or the region.

Gen. Dan Caine, chairman of the Joint Chiefs of Staff, said U.S. strikes have significantly set back Iran's military and defense industrial base, but also said the military would stand ready to resume strikes if the ceasefire fails.

U.S. lays out stats of Iran strikes

Gen. Dan Caine, the chairman of the Joint Chiefs of Staff, said more than 13,000 targets have been struck in operations against Iran, destroying 80% of Iran's air defense systems and attacking 90% of its weapons factories.

Caine told reporters at a Pentagon briefing that more than 90% of Iran's regular naval fleet has been sunk, "including all major surface combatants" with 150 ships now "at the bottom of the ocean."

WATCH: Mideast experts weigh Iran regime's leverage in negotiations with U.S.

Caine added that the operation included the consumption of "more than 6 million meals, and by my estimate, more than 950,000 gallons of coffee, 2 million energy drinks and a lot of nicotine."

Hegseth says U.S. could strike again if Iran does not hand over enriched uranium

The Pentagon chief did not offer any details about whether Iran had agreed to Trump's statement that the U.S. would work with them to "dig up" the buried material.

However, Hegseth said Iran will "give it to us voluntarily," or the U.S. might do "something like" its strikes last summer with Israel hitting Iran's nuclear sites.

"We reserve that opportunity," Hegseth said.