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Some sailors have reportedly tried throwing themselves into the sea, basic supplies can run short and sanitation is going awry: life on America’s giant Abraham Lincoln aircraft carrier is increasingly difficult as the Iran war drags on.

The ship — now in its ninth month of deployment — is expected to be replaced in the Middle East by another carrier, the George Washington, in a move sure to be welcomed by the Lincoln’s crew and their loved ones.

But concerns about conditions on the Lincoln have prompted lawmakers to demand answers from Pentagon chief Pete Hegseth, who insists the situation has been “misrepresented”.

Jonathan Schroden, chief research officer at the Centre for Naval Analyses, said the warship’s sailors face significant challenges from their long time at sea.