25th Marine Regiment

Moti-moti-got a lot of motivation. Congratulations to the former Major Brian Tedesco on his promotion to Lieutenant Colonel of Marines. LtCol Tedesco serves on the 25th Marines I&I staff in the S-4, overseeing all things related to supply and logistics throughout the Regiment. Motivated by his #USMarines and dedicated to his Corps, LtCol Tedesco was pinned by his family during a formation aboard Fort Devens, reaffirming his oath and thanking those in his life who have helped him reach this career milestone.

D+4 Early in the morning on D+4 – 80 years ago today – 2d Battalion, 25th Marines found itself the recipient of a heavy enemy mortar barrage, resulting in significant casualties. This was followed by an assault of 2d Battalion and 3rd Battalion, 25th Marine Regiment Battalions’ positions by a force of 100 Japanese infantry, but attempt after attempt was repelled by the Marines and sailors of 25th Marines. Depleted and having lost three battalion commanders, the Regiment was pulled into the 4th Marine Division reserve with the exception of 2/25, who was attached to 24th Marine Regiment who moved in to take the 25th Marines’ place. Their time in the reserve was anything but restful, however, and after giving their weapons a thorough cleaning, the 25th Marine Regiment engaged in mopping up operations. D+4 saw the rising of Old Glory by the 28th Marines atop Mount Suribachi, and was observed by Marines and sailors all over the island, soliciting their cheers and steeling their resolve. 25th Marine Regiment would continue fighting for every inch of the island until 1030 on 16 March, when Colonel John Lanigan would declare all enemy resistance in his zone destroyed. Three days later, the Regiment would sail for Maui to prepare for an invasion of mainland Japan that would never come, thanks to the dropping of the atomic bombs on Hiroshima and Nagasaki. Official United States Marine Corps photos

D+3 The cold drizzle that had fallen throughout the night turned into a torrential rainfall 80 years ago today as the #USMarines and sailors of 25th Marine Regiment resumed their attack on #IwoJima as the 3rd Marine Division, having landed during the night, came abreast on their left flank, tying into 3d Battalion 25th Marines. As artillery and naval gunfire pummeled the enemy on Charlie-Dog Ridge, LtCol Justice “Jumping Joe” Chambers, the commanding officer of 3d Battalion and a former #MarineRaider, ordered his rocket platoon to fire 128 rockets into the enemy position in a period of only 3 minutes. While directing this barrage, Japanese machine gun fire found LtCol Chambers, nearly cutting him in half and necessitating his evacuation under fire. For his actions and leadership during these first 100 hours, particularly during the landings on #DDay, Jumping Joe would be awarded the #NavyCross and be medically retired. Following a review, this award would be upgraded to the #MedalofHonor in 1950 and he would be advanced to the rank of full Colonel on the retired list. Today, the Colonel Justice Marion "Jumping Joe" Chambers Award is presented annually to the Reserve company grade officer within the 4th Marine Division or 4th Force Service Support Group who best demonstrates the outstanding leadership qualities exemplified by Colonel Chambers during World War II. Official United States Marine Corps photos

D+2 80 years ago today at 0500, an enemy force of 100 Japanese #infantry assaulted 1st Battalion 25th Marines’ position on the regiment’s left flank and was promptly repelled. As the sun rose over the island of #IwoJima, friendly #artillery and close air support bombarded the battle space ahead of the day’s resumed attacks. The #USMarines of the Regiment pressed the assault amidst heavy and accurate enemy fires, incurring heavy casualties as a result. Among them was 1st Battalion’s commander, LtCol Hollis U Mustain, who fell while directing his Marines in a daring and heroic attack against the strategic amphitheater. LtCol Mustain would later be awarded the military’s second highest honor – the #NavyCross – for his leadership during the opening days of the battle. When a platoon of Company A, 1st Battalion 25th Marines was held up by a barrage of Japanese grenades northeast of Airfield Number One, the acting platoon sergeant, Sergeant Ross F Gray, proceeded alone on a one-man reconnaissance. Discovering a heavily mined area between his platoon and the enemy’s fortifications, Sgt Gray came under a hail of enemy small arms fire. Undeterred, he single-handedly cleared a path through the minefield and, after returning to his platoon and informing his leadership of the situation, he volunteered to initiate an attack under the covering fire of three of his #Marines. Carrying nothing but a satchel charge, Sgt Gray crept through the minefield to an enemy emplacement and used it to seal the entrance, immediately drawing enemy machine gun fire in the process. Sgt Gray crawled back and forth between the enemy’s fortifications and his platoon, throwing charge after charge into the enemy’s positions. By the end of his attack, Sgt Gray had destroyed 6 Japanese emplacements, killing more than 25 enemy soldiers and destroying a quantity of enemy ordnance. For these actions, Sgt Gray would later be awarded the nation’s highest honor – the #MedalofHonor. A gap formed between the 1st and 2nd Battalions, but was quickly plugged by what remained of the decimated 3d Battalion 25th Marines. As a cold drizzle began to fall, the Regiment was ordered to dig in for the night to allow the unit to consolidate. #UncommonValor #SemperFidelis 4th Marine Division Official United States Marine Corps photos

D+2 80 years ago today at 0500, an enemy force of 100 Japanese #infantry assaulted 1st Battalion 25th Marines’ position on the regiment’s left flank and was promptly repelled. As the sun rose over the island of #IwoJima, friendly #artillery and close air support bombarded the battle space ahead of the day’s resumed attacks. The #USMarines of the Regiment pressed the assault amidst heavy and accurate enemy fires, incurring heavy casualties as a result. Among them was 1st Battalion’s commander, LtCol Hollis U Mustain, who fell while directing his Marines in a daring and heroic attack against the strategic amphitheater. LtCol Mustain would later be awarded the military’s second highest honor – the #NavyCross – for his leadership during the opening days of the battle. When a platoon of Company A, 1st Battalion 25th Marines was held up by a barrage of Japanese grenades northeast of Airfield Number One, the acting platoon sergeant, Sergeant Ross F Gray, proceeded alone on a one-man reconnaissance. Discovering a heavily mined area between his platoon and the enemy’s fortifications, Sgt Gray came under a hail of enemy small arms fire. Undeterred, he single-handedly cleared a path through the minefield and, after returning to his platoon and informing his leadership of the situation, he volunteered to initiate an attack under the covering fire of three of his #Marines. Carrying nothing but a satchel charge, Sgt Gray crept through the minefield to an enemy emplacement and used it to seal the entrance, immediately drawing enemy machine gun fire in the process. Sgt Gray crawled back and forth between the enemy’s fortifications and his platoon, throwing charge after charge into the enemy’s positions. By the end of his attack, Sgt Gray had destroyed 6 Japanese emplacements, killing more than 25 enemy soldiers and destroying a quantity of enemy ordnance. For these actions, Sgt Gray would later be awarded the nation’s highest honor – the #MedalofHonor. A gap formed between the 1st and 2nd Battalions, but was quickly plugged by what remained of the decimated 3d Battalion 25th Marines. As a cold drizzle began to fall, the Regiment was ordered to dig in for the night to allow the unit to consolidate. #UncommonValor #SemperFidelis 4th Marine Division Official United States Marine Corps photos

D+1 80 years ago today, shivering in their fighting positions on #IwoJima, the Marines and sailors of 25th Marines were awakened at 0400 when a Japanese shell detonated the Regiment’s ammunition dump. Around 0700, another enemy shell landed directly inside the command post of 2d Battalion, sparing the lives but critically wounding the battalion’s commander, as well as the executive and operations officers. As the sun rose, the #USMarines called on their artillery, air, and naval guns to bombard enemy positions until the order came at 0830 to press the attack. Ordered to seize the high ground, 2d Battalion 25th Marines surged forward, supported by the 4th Tank Battalion. The tanks proved ineffective in the rough terrain, however, and drew explosive fire from enemy cannons and mortars that used the tanks to range and refine their sheafs onto the Marines’ positions. A Japanese shell landed inside 1st Battalion’s aid station, killing 6 US Navy corpsmen and wounding 7 others. At 1800, after making gains of less than 300 yards, Colonel Lanigan ordered his Regiment to halt and dig in for the night. As temperatures dropped and their sweat chilled, the Marines and sailors of 4th Marine Division settled in for another restless night of enemy shelling. #UncommonValor #SemperFidelis Official United States Marine Corps Photos

"Catching all hell from the quarry. Heavy mortar and machine gun fire!” These words crackled over the comms as the #USMarines and US Navy Corpsmen of Colonel John R. Lanigan’s 25th Marine Regiment assaulted the beach at Blue 1 on Iwo Jima, 80 years ago today as part of 4th Marine Division's landing force. Facing the fiercest resistance encountered among the entire landing force directed from unseen camouflaged positions and with amtracs unable to traverse the volcanic ash, 1st Battalion 25th Marines and 3rd Battalion, 25th Marine Regiment found themselves initially pinned down. Battling their way up the beach, a gap began to form between the two elements and 2d Battalion 25th Marines was committed to fill the gap and seize the high ground half a kilometer inland. In these opening hours, 3/25 suffered 750 casualties. Disorganized and whittled down to an effective force of only 150 men, the battalion was relieved on the line by 1st Battalion 24th Marines. At 1700, the landing force was ordered to dig in to prepare for the imminent banzai attack called for by enemy doctrine but was spared such an onslaught by the fact that the Japanese commander, General Kuribayashi, viewed such tactics as a needless waste of his troops’ lives. Instead, as night fell he ordered an intense and unyielding bombardment by his mortars and artillery as 25th Marines hunkered into their fighting positions for the first night of the invasion. #UncommonValor #DDay #IwoJima

Colonel J. David Fleming, Commanding Officer, 25th Marine Regiment invites you to join us in a ceremony honoring Sergeant Major Robert Shane Scoggins on the occasion of his retirement from the United States Marine Corps at one o'clock on Saturday, the 22nd of February, 2025 via Facebook Livestream.

Sustaining Readiness. India Company, 3rd Battalion, 25th Marine Regiment recently conducted required annual training to include their rifle and swim qualifications, enhancing both their individual and unit readiness and lethality. These skills, among others, are essential to maintaining Marines' deployability and help ensure that they remain ready to answer if and when our nation calls.

Join us in recognizing the newly minted Gunnery Sergeant Fabian Herrera on his promotion. GySgt Herrera serves as the 25th Marine Regiment Chemical-Biological-Radioactive-Nuclear (#CBRN) Chief, as well as the Schools and Training Chief within the Regimental S-3. Last summer, he was hand-selected to represent 4th Marine Division as a CBRN Subject Matter Expert in Sweden during the execution of?#BALTOPS. Congratulations, #Gunny, on your hard-earned and well-deserved second rocker.