General Mattis said during a talk in 2014 that “you have to be very careful about doing that [resigning in protest]. The lance corporals can’t retire. They’re going. That’s all there is to it.”

He added: “You abandon him only under the most dire circumstances, where the message you have to send can be sent no other way. I never confronted that situation.”

As a veteran that message resonated with me. This cartoon immediately formed in my mind when I read about Mattis resigning in protest.