United States President Donald Trump has sent another harsh message to Iran, warning that any attack that takes the life of an American soldier will be followed by a much stronger military response.

In a post on social media, Trump announced that he has already given clear instructions to Defense Secretary Pete Hegseth, the Chairman of the Joint Chiefs of Staff, Dan Kaine, as well as to all leaders of the US Armed Forces.

"Every time Iran kills an American soldier, they will pay for this action many times over. The appropriate instruction has already been given to the Secretary of Defense, the Chairman of the Joint Chiefs of Staff, and every leader of the Armed Forces," Trump wrote.