As President Donald Trump floats “regime change” in Tehran, previous U.S. attempts to remake the Middle East by force in recent decades can offer stark warnings about the possibility of a deepening involvement in the Iran-Israeli conflict.

US President Donald Trump said on Tuesday he does not want to see "regime change" in Iran, which he said would lead to chaos. The remark came hours after he announced a ceasefire in the Iran-Israel "12-day war",

The US president says "why wouldn’t there be a regime change?" after officials earlier said the strikes were aimed at ending Iran's nuclear programme.