Srinagar, July 24 -- Srinagar - Five months into the grinding war with Iran, US President Donald Trump is reportedly growing increasingly frustrated, isolated and convinced that military force-not diplomacy-is the only way forward, even as the conflict threatens to damage his presidency, strain key alliances and undermine Republican prospects in next year's midterm elections.

According to a Wall Street Journal report published Thursday, Trump has become deeply skeptical that the conflict can be resolved through negotiations and now believes Tehran understands only the language of force.

A senior administration official described the president as being in "revenge mode" against Iran, leaving him with little appetite for diplomacy and few...