Earning a Ranger tab is a difficult task for most Army soldiers, so imagine the culture shock that Air Force Staff Sgt. Robert Keefe must have experienced while going through the Ranger course. Still, he became the 266th airman to successfully graduate from Ranger School.

Being thrown together with troops from other branches does take a while to get used to. Still, his learning curve was incredibly short. It must have added a whole other layer of stress for Keefe to have to adapt to the Army way of life while in his training. Given the recent female Ranger School graduates, I thought our SOFREP readers might enjoy yet another perspective of Ranger School. The following Department of Defense article offers Sgt. Keefe’s unique perspective.

Stopping for a moment to catch his breath, the airman realized he was nearing the limit of his willpower.

He placed his rucksack on the ground for a brief moment of rest and glanced toward the mountain peak ahead. He could hear the rain dripping from the tree branches above, soaking his gear and clothes.

Exhausted and craving sleep, food and a warm bed, he played with the idea of giving up. Deep down, however, he knew this wasn’t an option. He took a deep breath, forced himself to take another step and continued with his squad up the ridge.

Air Force Staff Sgt. Robert Keefe, the 736th Security Forces Squadron noncommissioned officer in charge of training, was in the middle of the U.S. Army Ranger School. It was his chance to prove his mettle as a combat-ready airman among some of the military’s toughest warriors.

Rangers are uniquely skilled service members who specialize in conducting airborne and air assault operations, seizing key terrain such as airfields, destroying strategic facilities and capturing or killing enemies of the nation. Only a few airmen are given the opportunity to attempt to join this elite brotherhood.

Located at Fort Benning, Georgia, the school prepares volunteers in combat-arms-related functional skills. With a 40 percent graduation rate from 2011 to 2015, Ranger School is one of the most grueling training courses a military member can attend.

“Ranger School is what I would consider the Department of Defense’s premier leadership course,” Keefe said. “It exists only to build the best leaders in combat for whatever branch you’re in.”

Keefe usually trains security forces airmen here to be proficient for contingency operations around the world. With 11 years of experience, the battlefield expert has sharpened his skill set with sniper training; learned how to survive and return with honor through evasion and conduct after-capture training; and spent time as an investigator with a security forces unit at Ellsworth Air Force Base, South Dakota.

Preparing for Ranger School

In early 2015, while Keefe was providing security support for the president, Air Force Capt. Nathaniel Lesher — the squadron’s executive officer at the time — approached him and asked if he was interested in the opportunity to become a Ranger.

“I selected Keefe to attend Ranger School because it was apparent that he was both physically and mentally tough enough to finish the course,” Lesher said. “He is the guy who subordinates look up to and peers respect. Additionally, Keefe excelled at all core tasks and physical requirements in order to attend the school, and with a short notice, completed another physically and mentally challenging school — the Close Precision Engagement Course — earlier in the year.”

At first, the airman shrugged it off, thinking his captain was only joking. After all, only a handful of airmen get the chance to join soldiers in the course.

“When he first asked me, I told him, ‘Sure I’ll go if you send me,’” Keefe said. “At first, I didn’t think he was serious, but he asked me again a few more times over the course of the next couple days. Then I thought that he might actually be serious.”

After returning here from a security mission in India in mid-2015, Keefe’s leaders decided he was ready to represent his unit at Ranger School and got him a spot on the class roster.

Keefe said his wife, Ayesha, and their two sons, Nicholas and Tighe, were used to him being gone for months at a time due to contingency response missions or deployments, and they supported his decision to attend the school. Knowing how important it was to his boys, however, he made a promise to be home for Halloween. This commitment put Keefe on a tight timeline. To be back on Guam by that date required him to go straight through the course and pass all challenges without being recycled or phased back.

To prepare for his imminent struggle, Keefe attended the Ranger Training Assessment Course — an evaluation split up into two weeklong phases. During the assessment phase, he persevered through tasks such as the Ranger physical fitness test, a combat water survival assessment and various other physical fitness events. In addition, he learned troop leading procedures, patrolling techniques and small unit operations. To continue to the second phase, Keefe had to pass all Ranger assessment phase events.

During the second phase, Keefe and other students rotated into leadership positions and proved their ability to accomplish small unit combat operations from planning through execution. The instructors also evaluated Keefe on his ability to lead squad-sized patrols.

Once he completed Ranger Training Assessment Course, Keefe gained passage into the Ranger course.

‘Air Force, What Are You Doing Here?’

Pulling up to the training center at 7 a.m., Keefe noticed he was the first one to arrive. He anxiously stepped out of the taxi and collected his baggage. After passing under a large Ranger tab suspended above him, he said, he knew it was “go-time.” Seconds later, a Ranger instructor stopped Keefe and asked, “Air Force, what are you doing here?”

Without hesitation, the airman replied confidently, “I’m here for Ranger school.”

The instructor chuckled and told him to go sit down. Listening to his instruction, Keefe placed his gear down beside him and took a seat on the training pad. While waiting for other trainees to arrive, he said, he first questioned himself on what he was even doing there.

As time passed and more students arrived, Keefe said, he noticed the operational camouflage-pattern uniforms. As he observed operators pulling off their patches, leaving only their name and service branch tapes, he noticed he was surrounded by some of the Army’s most elite soldiers as the only airman among his peers.

“I overheard some of the men talking and heard some say they were with Special Forces,” Keefe recalled. “I started to think, ‘These are some real guys I’m sitting here with right now. These guys are going to dominate this course, and I’m going to have a tough time. Then I thought, ‘These guys aren’t better than me; they’re just like me. They’re probably thinking the same thing I’m thinking right now: ‘Who is that kid, and why is he in the Air Force? Why is he here? He must be something special.’”

Benning Phase

The Benning phase kicked off 61 days of hell for Keefe and the other students. In the first week, Keefe demonstrated his physical stamina and mental toughness by exceeding the minimum of 49 pushups and 59 sit-ups in a two-minute span, six chin-ups and by running five miles in 40 minutes or less. Nearly 40 percent of failures occur during the first few days of this phase. Seeing trainees drop out motivated him to push through the physical pain and mental strain, Keefe said.

He was introduced to the instructors’ disciplinary measures. As often as they deemed necessary, the students were ordered to execute pushups, sit-ups, squats, and burpees until they were told to stop.

“The instructors are pretty much holding your hand throughout that phase,” Keefe said of the frequent pressure. “They beat you into the ground all day long. They worked us ’til we didn’t want to breathe any more, but they showed us exactly how to do everything. They wanted us to perform, so they were very critical on the way they graded us.”

Keefe said he quickly realized how little sleep he was getting. Sleep deprivation is part of the course, and requires Ranger candidates to dig deep. Some nights, he said, he slept for little more than 15 minutes or not at all. The most sleep he got during the training was a trifling two hours, he added.

“One thing I learned about Ranger School is that I could literally sleep doing anything,” Keefe said. “I would sleep during conversations, and at times, I would sleepwalk. There was an instance when I woke up walking in the woods not knowing how I got there.”

Halfway There: Mountain Phase

After learning the tactical fundamentals during the Benning phase, Keefe found himself in the North Georgia mountains for another stage of challenges. He learned about knots, belays, anchor points, rope management, and the basic fundamentals of climbing and rappelling. He also trained on evacuating simulated injured personnel and performing raids in a mountainous environment. Keefe said he’d had very little previous mountaineering experience, so this segment proved to be difficult.

Hiking through the mountains ambushing training sites, Keefe said, he found himself exhausted and pushed to his limits. Mother Nature didn’t make things any easier, either, he added.

“It rained on us the whole time we were there,” Keefe said. “It was terrible. Our ruck sacks were already heavy enough, and the rain just made it even heavier. There were times where my ruck would weigh in excess of 80 to 100 pounds.”

Home Stretch: Florida Phase

Battling exhaustion and hunger, Keefe said, he knew he had only a few weeks left during the final stretch of the school. The finish line inched closer, but Keefe needed to survive the swamps of Florida. With his classmates, he received instruction on waterborne operations, small-boat movements and stream crossings.

“By this time, we were expected to operate without help from the instructors,” Keefe recalled. “You’ve got it all figured out at this point, and the missions should go well. It was hot, humid, and the mosquitoes were like dinosaurs. You live in a swamp, and you’re always soaking wet with mud. It wasn’t easy.”

After braving some of the harshest environments of the continental United States, from mountain elevation to the humid heat of Florida, Keefe had proven that he met demanding requirements of the curriculum.

Without delay and recycle, Keefe graduated from the school Oct. 16 and became the 266th airman to earn the black and yellow Ranger tab. This enabled him to keep his promise to his sons, Keefe said, noting that only 8 percent of students can say they accomplished this feat.

Keefe said he didn’t make it straight through the course because he was exceptional. “It was because I had a bunch of people around me who helped me get through it,” he added.

Not a day passed when he didn’t experience a trial, Keefe said, but he knew he was never going to be presented this opportunity again. Dreading the thought of returning to his unit and being known as a failure, he fought to earn the Ranger tab.

“Every single day, I wanted to quit,” Keefe said. “I kept telling myself, ‘Tomorrow, you’re going to quit.’ Then tomorrow came, and I kept saying the same thing. I kept telling myself, ‘If you quit, then you’re going to be that guy who says they made it to the second phase of Ranger school then quit.”

Sporting the Ranger tab on his left shoulder, Keefe said he takes pride in knowing he is one of a few select airmen who have persevered through the grueling training.

“I wanted my kids to be proud, I wanted my wife to be proud, and I wanted to do it not only for myself, but for everyone who is important to me,” he said.