Why the clock is ticking on Trump's #Iran invasion plans In light of Donald Trump's vow on Truth Social that the US would hit Iran "VERY HARD" and seize Kharg Island along with other oil infrastructure, one question looms large: does the US still have time for a ground campaign? History has shown that nature can defeat even the world's strongest armies. Russia's winter broke Napoleon and #Hitler. In southern Iran, it is the summer that could derail any large-scale US ground offensive.