1) Very first thing Iranian regime did is attacking US embassy and taking hostages. Then they bombed US embassy in Lebanon, US Marine barracks in Beirut, Khobar towers killing dozens, they supported insurgency in Iraq.. They attacked Israeli embassy and Jewish center in Buenos Aires, they armed and supported terrorists which killed thousands Israelis. Death to America and death to Israel are their official slogans. In 2024 they also attacked Israel twice with ballistic missiles directly.1) Iran regime attacked US and Israel first not the vice versa.
2) Iran regime was offered an excellent deal which would benefit Iran and rest of the world. They repeatedly refused.
3) The amount of death and destruction caused by Iran regime before this war is thousands times more.
4) Iran regime is getting weaker day by day.
2) They were offered a deal which would lift sanctions. That would bring hundreds of billions to Iran, it would reduce oil prices and make world more secure. They refused and showed middle finger for no reason at all.
3) Since 1979 Iran started exporting its Islamic revolution. They created and armed sectarian Shia militias all over the middle east, causing civil wars and bloodshed. They are directly responsible for hundreds of thousands dead in Syria, for wars Iraq, Yemen and Lebanon.
4) Their military factories and bases are obliterated. Number of rockets they fire drastically reduced.