President Donald Trump said Wednesday that U.S. forces would “finish the job” in Iran soon as “core strategic objectives” near completion, using his first national address since the war began more than a month ago to strongly defend the conflict.

He used his platform before a wide audience to tout the success of the U.S. operations and argue that all of Washington’s objectives have so far been met or exceeded, but said Iran would continue to face a barrage of attacks in the short term.

"We are going to hit them extremely hard over the next two to three weeks,” Trump said. "We’re going to bring them back to the Stone Ages, where they belong.”

But Trump also spent much of an address that lasted just under 20 minutes repeating many things he had already said in recent weeks and providing few new details.

The speech appeared unlikely to move the needle of public sentiment at a time when polling shows many Americans feel the U.S. military has gone too far in Iran and as gas and oil prices remain high.