Since Israel began its concerted attack on Iran on Friday, calls for regime change in Iran have grown louder – from hawks in the US Congress to Israeli officials and some Iranian activists abroad.

TEL AVIV, Israel (AP) — Iran fired a new wave of missile attacks on Israel early Monday, killing at least five people, while Israel claimed in the fourth day of the conflict that it had now achieved “aerial superiority” over Tehran and could fly over the Iranian capital without facing major threats.

Israel's blistering attack with warplanes and drones against Iran’s nuclear and military structure has sparking an open conflict between the two long-time foes that threatens to escalate.

Iran and Israel intensified strikes on each other's infrastructure and territory over the weekend after Israel launched a surprise assault on its long-time enemy's military leadership and nuclear program.

As the Iran-Israel conflict intensifies, the U.S. deploys the USS Nimitz aircraft carrier along with support tankers to bolster military readiness.

Israel's conflict with Iran represents far more than another Middle Eastern crisis—it marks the emergence of a dangerous new chapter in nuclear rivalries that has the potential to reshape global proliferation risks for decades to come.

Oil prices fell and stocks climbed in early trading on Monday, indicating optimism among investors about the limits of economic fallout from the ongoing Israel-Iran conflict. The Dow Jones Industrial Average surged 415 points, or 1%, erasing much of the losses suffered on Friday as back-and-forth strikes broke out between the two countries.

A Democratic senator introduced legislation to prevent President Donald Trump from using military force against Iran without Congress's authorization.