This is United States Army Captain Sarah Cudd from Public Health Command, Fort Knox in New Jersey in the final yards of the infamous 12 Mile Foot March — the completion of which being the only thing separating her from obtaining the Expert Field Medal Badge (EFMB).

Watch Sarah as she grits through exhaustion and somehow finds it deep within her to finish the grueling test under the required three hours time.

According to the video’s source, she was the only one out of 46 candidates to successfully complete the march.

Despite falling down several times, she gets back up and … well, just watch it to see.

It’s truly inspiring.