Israel and Iran exchanged deadly fire for a fifth day on Tuesday in their most intense confrontation in history.

Israeli fighter jets have been seen armed with inexpensive glide bombs. Air superiority means it doesn't need to expend costly stand-off missiles.

Haifa oil refinery's facilities shut down following Iranian missile strike • US bolsters Trump's Middle East military options by moving refueling aircraft

Only the U.S. military has the 30,000-pound bomb capable of reaching the facility and the bomber that can carry it.

The conflict between Israel and Iran has forced many countries in the Middle East to close their airspace, as Israeli jets and Iranian exploding drones and missiles fly over their night skies.

US President Donald Trump is expected to present Iran with a “last chance” offer, US and European officials told The Jerusaem Post on Monday. One official added that it might even be slightly better than the previous proposal the administration submitted to the Iranians about a week and a half ago.

Blasts rang out across a swath of the Middle Eastern republic’s territory, targeting its nuclear capabilities, military leadership and scientists.

The Israel Defense Forces released footage showing overnight airstrikes on Iran’s “nuclear program headquarters” in Tehran. About 50 Israeli fighter jets struck 80 targets, including the Iranian Ministry of Defense and Sepand nuclear sites,