The present 30th Infantry was constituted on 2 February 1901 in the Regular Army, and was organized from 12 February–19 August 1901 at Fort Logan, Colorado, the Presidio of San Francisco, California, and in the Philippines.

On 31 January 1932, the regiment sailed on the troopship USAT St. Mihiel to the Territory of Hawaii to conduct an amphibious assault landing exercise from 12–16 February 1932 against the Hawaiian Division at Makua, Oahu.

After Tallil, 1-30 was ordered to secure the lines of communication and man checkpoints for a couple of days while the rest of the 3d Brigade continued combat operations in the vicinity.

At the same time, Company C was ordered to march over 35 km to support the taking of OBJ Vikings, a bridge outside the city of Ash Shinafiya.

While Company C was holding the objective, three tanks, one of the scouts' vehicles, and an M113 engaged in an extended firefight on the opposite side of the bridge during a patrol.

During those two days, Company B of 1-30, most notably 1st and 3d Platoons, inflicted heavy losses on Iraqi Republican Guard units on the outskirts of the city.

On 6 April, the battalion reached the city and, with 1st Platoon of Company B, in the lead, fought several engagements with defending Republican Guard units.

By 10 April, the battalion pushed its way into Baghdad and set up its headquarters at a water-treatment facility in the northwestern sector of the city.

The deployment began in Kuwait, where the battalion prepared its equipment and conducted final training exercises prior moving north to Iraq.

The 1st Battalion, 30th Infantry Regiment then road marched by land and air into FOB Normandy, Iraq on 21 January 2005.

Company B was attached to the 3d Brigade, 42d Infantry Division (New York National Guard) Headquarters at FOB Warhorse, to serve as a quick reaction force.

In June 2005, Company B, 1-30th Infantry, was attached to 2nd Battalion, 69th Armor Regiment, and moved to Ar Ramadi, in the Anbar Province.

During the months of January and February 2005, 1st Battalion, 30th Infantry Regiment prepared its soldiers and equipment for future operations in Iraq.

In addition, Task Force 1–30 was introduced to the 205th Iraq National Guard/2d Battalion, 2d Infantry Regiment, occupying FOB Normandy, who became partners to help complete the mission.

The 1st Battalion, 30th Infantry Regiment participated in the "Surge" ordered by President George Bush in early 2007 to reinforce Coalition forces in and around Baghdad, Iraq due to the increase of violence and attacks from Al Qaida and insurgents.

As many as 14 previous attempts to infiltrate this area were unsuccessful, due to numerous IEDs (improvised explosive devices) and enemy activity.

1-30 Infantry's mission was to clear this area of Al Qaida and insurgents, and help prevent the flow of weapons into Baghdad, as well as re-establish rapport and good relations with the local population.

1-30th Infantry served from December 2009 until October 2010 in Iraq, primarily in the ethnic hotbed of Kirkuk and conducted combined check points with the Iraqi army and Kurdish Peshmerga.

In the summer of 2011, the 1st Battalion 30th Infantry Regiment became the first 3ID unit on Fort Stewart to receive and train on the Army's newest M1A2 SEP tanks and M3 Bradley Fighting Vehicles.

In the spring of 2012, TF 1-30th served as the Combined Forces Special Operations Component Command- Afghanistan (CFSOCC-A), conducting the first accelerated Afghan Local Police program in the remote province of Takhar, on the border with Tajikistan.

HHC mortars and medics were scattered throughout the country supporting numerous village stability sites; they were consistently praised for the actions while in contact.

The regiment moved to Fort Ord, California, where they practiced amphibious tactics for the battles in North Africa.

During the Battle of San Agata, General Patton specifically chose the 2nd Battalion, 30th Infantry to move to the right flank of the 29th Panzer Grenadier Division.

The objective was for the 2nd Battalion, 30th Infantry Regiment to make a sea-borne landing at Brolo and cut off the 29th Panzer Grenadier Division from escaping Messina.

Although the majority of the 29th Panzer Grenadier Division successfully retrograded, the 2nd Battalion received the Presidential Unit Citation award.

It spent the majority of September through December 1944 fighting in the Vosges Mountains and began its assault on the Siegfried Line in Austria on 15 March 1945.

On 16 January 2005, the unit was assigned to the 3rd Brigade Combat Team, 10th Mountain Division, and activated at Fort Polk, Louisiana.

In November 2006, the 2-30th Infantry deployed with other elements of the 4th Brigade Combat Team, 10th Mountain Division to Afghanistan as part of Operation Enduring Freedom.

In the fall of 2007, soldiers of 2nd Battalion, 30th Infantry Regiment deployed to East Baghdad, Iraq and continued their mission until early 2009.

[5] In preparations for operations in Afghanistan, 2nd Battalion, 30th Infantry Regiment deployed to Camp Guernsey Army Airfield, Wyoming, in February 2010 to conduct month-long training.