By Kimberly Nordyke Managing Editor, Digital John Oliver kicked off Sunday’s Last Week Tonight by mocking President Trump for his justification of avoiding the use of the word “war” amid the United States’ military operation in Iran. “The Iran war entered its second month, though Trump tries not to use the word ‘war’ for reasons he probably shouldn’t be saying out loud,” Oliver said, setting up a clip of Trump explaining why he isn’t using the term. “I won’t use the word ‘war’ because they say if you use the word war, that’s maybe not a good thing to do,” Trump said. “They don’t like the word war because you’re supposed to get approval, so I’ll use the word ‘military operation,’ which is really what it is.” Responded Oliver: “What?…