Following the recapture of Seoul, the 1st Marine Division was pulled out of northwest Korea and sailed to the east coast where they landed at Wonsan in late October and began to march north towards the Yalu River.

The 300+ remaining members of 3/7[6] provided the rearguard for the two regiments as they broke out to Hagaru-ri and were the last Marines to leave the perimeter at Yudam-ni as it was being overrun by Chinese forces[7] 3/7 consolidated with the rest of the division at Hagaru-ri and took part in the fighting breakout towards Koto-ri where, on 7 December, all of the 1st Marine Division's regiments were together for the first time since the landing at Wonsan in October[8] Of note during the battle, on the morning before their arrival at the Koto-ri perimeter, the battalion's CO, who during the battle was described as "coming apart"[9] and having an "emotional breakdown and collapse",[10] disappeared and was never seen again.

Over the next four days, Operation Texas claimed a total of 623 known PAVN dead, but at least 57 US Marines and sailors were killed in a series of bitter fights.

[16] For "conspicuous gallantry and intrepity at the risk of his life above and beyond the call of duty" and "in the face of vicious enemy fire" during a search and destroy mission in the Que Son-Hiep Duc Valley on 28 August 1969, in which he destroyed several of the enemy and silenced anti-aircraft guns and machinegunist, Lance Corporal Jose F. Jimenez of Kilo Company, 3/7, was posthumously awarded the Medal of Honor.

For a month from mid-February onwards, 3/7—as part of Task Force Grizzly, which mainly consisted of 3/7 and 2nd Battalion 7th Marines—took up position along a berm near the Saudi–Kuwaiti border.

Aboard LCUs LAVs, AAVs, and LCACs the joint task force secured Mogadishu International Airport and New Port.

The premier infantry combat unit in the world, they originally deployed in January 2003, moved north in March and reached Baghdad by April – securing several cities, military bases, terrorist training facilities, and various other objectives along the way.

During the assignment, India Company, 3rd Battalion 7th Marines operated in Mahmudiyah, Iraq in support of Task Force Scorpion during July and August 2003.

Lima Company's 3rd platoon, 2nd squad, is responsible for capturing and detaining some of the highest ranking Ba'ath Party members to date during covert operations south of Baghdad.

India Company's training in the Kuwaiti desert and the subsequent invasion was covered in the TV documentary Virgin Soldiers which often airs on Discovery Times and Military Channel.

Increased military presence resulted in continuous fighting, including large-scale operations to retake the city of Husaybah from insurgents and local fighters in April.

3/7 oversaw and provided security for elections at multiple locations in Ramadi near the end of the deployment, which proved highly successful and resulted in little conflict.

Since the prevalence of the Anbar Awakening, 3/7 Marines began conducting counter-insurgency (COIN) missions rather than the more "kinetic" operations on previous tours.

The Marines of 3/7 encountered heavy resistance and are reported to have experienced some of the highest amounts of enemy contact during the Global War on Terrorism.

In September and October 2011, 3/7 relieved 1/5 and elements of 1/6 in both the "green" and "brown" zones of the Sangin District for a second tour in support of Operation Enduring Freedom.

In September 2013, 3/7 returned to Northern Helmand province and relieved 3rd Battalion, 4th Marines, in Afghanistan for a third tour in support of Operation Enduring Freedom.

India Co, as well as Kilo Co, tactically enabled by British SAS and Afghan Special Forces, conducted various offensive operations in 5 districts within Afghanistan.

The Blade's inaugural Special Purpose Marine Air-Ground Task Force – Crisis Response – Central Command (SPMAGTF-CR-CC) GWOT deployment from March through October 2015.

Continuing preparation for their second bout with SPMAGTF-CR-CC, the battalion immediately executed a comprehensive pre-deployment training regimen aboard the Marine Corps Air Ground Combat Center and special-purpose non-standard schools across the United States, further capitalizing on the organic skillsets of the Marine Corps infantry battalion and lessons learned.

Deploying in October 2016, this diligent preparation effectively and directly prepared The Blade to excel across the AOR, supporting combat operations in Mosul, Iraq alongside joint and Iraqi Security Forces securing and liberating the besieged city in dense, urban street fighting against ISIL,[22] supporting State Department and US Department of Defense initiatives in Syria fighting to disrupt ISIL and protect Internally Displaced Person (IDP) refugees around the Jordanian border,[22] and sustained missions throughout the AOR.