Both Uses of

resume
in
I Am a Seal Team Six Warrior

Training resumed slowly, starting with a lot of stretching exercises.†
p. 33.5

resumed = began again

As he assaulted down the alley with members of his unit, he was wounded in the calf Upon receiving combat field condition medical attention, he resumed his duties and continued to suppress enemy fire.†
p. 156.3 *

Definitions:

(1) (resume as in: resume the meeting)
begin or take again

This sense of resume generally means to begin again or continue after a pause. In usage like, "resumed her seat", it scan also mean to take again.
(2) (résumé as in: submitted her résumé)
a brief summary of a person's qualifications to do something -- typically submitted with an employment application

In practice, résumé is often written without the accented e's.
(3) (meaning too rare to warrant focus)
meaning too rare to warrant focus:

Less commonly, résumé can refer to any summary.