Making a career out of holding a camera lens up to the frontlines of conflict, photojournalists can find themselves in tough - if not precarious - situations. The Globe’s new documentary, Shooting War, features nine photographers known for their work in conflict zones.

Santiago Lyon, featured in the documentary, worked with the Associated Press for 25 years covering conflicts around the world. He talks about the physical and mental toll capturing wartime images can take and the work he is doing now as the head of education at the Content Authenticity Initiative to counter misinformation.

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The toll shooting war takes on photojournalists