Most units in the military have a motto that they use to stand out. Some of them are even pretty cool. But the most badass unit mottos are forged in the crucible of combat.

Here are seven units that live by the immortal words uttered in battle:

1. "Keep up the fire!" – 9th Infantry Regiment

The 9th Infantry Regiment has a long history, but its service in China is particularly noteworthy. Not only did the 9th pick up its regimental nickname, Manchu, from its time there — but also the unit's motto.

During the regiment's assault on the walled city of Tientsin, the flag bearer was killed and the regimental commander took up the colors.



He was immediately targeted by Chinese snipers and mortally wounded himself. His dying words to his men were "Keep up the fire!"

The unit successfully stormed the city and captured it from the Boxers.

2. "I'll try, sir" – 5th Infantry Regiment

Battle of Lundy's Lane, July 25, 1814. (New York State Military Museum)

During the War of 1812, the 21st Infantry Regiment engaged the British at the Battle of Lundy's Lane.

After the Americans were decimated by British artillery on the high ground, Lt. Col. James Miller, the regimental commander, was given the near suicidal task of launching an assault to capture the guns. He simply responded, "I'll try, sir."

The 21st advanced on the British position and fired a volley that swept the artillerymen from their guns. They then charged with bayonets, driving off the remaining British troops and capturing the guns.

When the 21st was absorbed by the 5th Infantry, with Col. Miller in command, his famous word "I'll try, sir" became the regiments official motto.

3. "These are my credentials" – 8th Infantry Division

Major General Charles D.W. Cahnam (U.S. Army photo)

After landing in Normandy in July 1944, the 8th Infantry Division was part of the arduous task of liberating the port city of Brest. After weeks of hard fighting, the Germans finally capitulated on Sept. 19.

When Brig. Gen. Charles Canham, deputy commander of the division, arrived to accept the surrender of the German commander, Gen. Ramcke, the senior German officer demanded to see the American's credentials. Canham, simply pointed to his battle-hardened soldiers and replied, "These are my credentials."

4. "Rangers lead the way!" – 75th Ranger Regiment

U.S. Army Rangers assigned to 2nd Battalion, 75th Ranger Regiment, fire off a Carl Gustav 84mm recoilless rifle at a range on Camp Roberts, Calif., Jan. 26, 2014. Rangers use a multitude of weaponry during their annual tactical training. (U.S. Army photo by Pfc. Rashene Mincy/ Released)

The Rangers of WWII spearheaded many Allied invasions, particularly on D-Day at Normandy. The Rangers of the 2nd and 5th Ranger Battalions found themselves pinned down on Omaha beach along with the rest of the assault force.

Trying to inspire the shell-shocked men of the 29th Infantry Division, Brig. Gen. Norman Cota, the assistant division commander, came across the men of the 5th Ranger Battalion. When they identified themselves as Rangers Cota then gave one of the most famous orders in the history of the U.S. Army: "Well, goddammit then, Rangers, lead the way!"

Their efforts effected the first break through on Omaha and what would later become their motto — Rangers lead the way.

5. "I'll face you!" – 142nd Infantry Regiment

The 142nd first saw action as part of the 36th Infantry Division in World War I. After facing heavy fighting near the village of St. Etienne, the regiment faced off against the Germans at the Aisne River. The regiment sent a patrol across the river to reconnoiter behind enemy lines.

As they attempted to return to friendly lines, they came under heavy fire from the Germans. A young lieutenant, inspiring his men, turned towards the Germans and shouted, "I'll face you!" and refused to turn his back.

His quote eventually became the regimental motto.

6. "Nothing in Hell must stop the Timberwolves" – 104th Infantry Division

The 104th Infantry Division was a unique formation.

Having trained specifically as a nightfighting unit, the division then received a unique commander — Mej. Gen. Terry de la Mesa Allen. A combat commander who had previously commanded the 1st Infantry Division in Africa and Sicily, he had an unorthodox command style combined with a hard-charging attitude.

When Allen took command, he gave the division its new motto, "Nothing in hell must stop the Timberwolves," and he meant it.

The 104th fought under numerous Allied commands and was always held in the highest regard, often being cited as the finest assault division. Through courage, grit, and determination the Timberwolves defeated the Germans and lived up to their motto.

7. "Let 'em have it!" – 59th Infantry Regiment

The 59th Infantry Regiment shipped to France during World War I as part of the 7th Brigade. During the Meuse-Argonne Offensive, the 59th took part in the fighting around Chateau-de-Diable.

During the engagement, a squad approached from the Chateau. Initially the men held their fire, afraid of gunning down friendly forces, until a sergeant with the regiment realized the mistake and yelled out, "They come from the wrong direction, let 'em have it!"

It was later discovered that the squad was German soldiers in American uniforms and the sergeant's words became the unit motto.