US President Donald Trump announced that the American army began a major combat operation inside Iran earlier today, saying the move comes in response to what he described as Tehran's attempts to rebuild its nuclear program and develop long-range missile capabilities that threaten the United States and other countries.In a recorded video published on the platform Truth Social, Trump said Iran had sought to reconstruct its nuclear program, calling it a violation of international understandings and a dangerous escalation in the region.He added that Tehran is working to develop long-range missiles capable of threatening US national security and Washington's allies.President Trump stressed that the primary objective of the operation is to ensure that Tehran cannot develop or acquire a nuclear weapon in the future.The US president's remarks came after Israel announced earlier in the day that it had begun launching an attack against Iran.