In 2016, the squadron entered into an alignment-for-training relationship with the 116th Cavalry Brigade Combat Team, 34th Infantry Division.

The 2nd Battalion, 115th Engineers, an element of the 40th Division was constituted on November 3, 1928, in the Nevada National Guard and federally recognized on May 1, 1936, with Headquarters in Reno.

By January 1, 1941, the unit was converted and re-designated as the 121st Separate Coast Artillery Battalion and relieved from assignment to the 40th Division.

[4] As the dust settled from World War II, the units of the Nevada National Guard would begin to re-organize and become federally recognized.

It was on January 23, 1948, that the 421st Antiaircraft Artillery Gun Battalion was federally recognized and headquartered in Las Vegas.

During this time the Squadron was designatied the 60th Guards Independent Tank Brigade (60th GITB) and was habitually employed as an exploitation force during Regimental (DTG) operations.

This included removal of the ballistic skirts, application of the tan-brown "Mongodai" pain scheme, two 55 gal fuel drums affixed to the hull, and other minor visual changes.

After the events of September 11th 2001, elements of the squadron would be called to active service for security missions at Nellis Air force Base, McCarran International Airport, and other key pieces of infrastructure under Operation Noble Eagle.

In this AOR they occupied FOB Mehtar Lam, with combat outposts at Xio Haq (south) and Nagil (north).

[4] In November 2021, the Squadron's tank company, Delta "Die Hard" was activated in support of Operation Enduring Freedom (Spartan Shield) based out of Kuwait.

[8] Throughout its history, the squadron has been often called on to support local civil authorities in everything from New Years Eve events on the Las Vegas Strip, to pandemic response, and more.

These Soldiers supported local hospitals, food banks, homeless shelters and eventually vaccination sites as part of the Nevada COVID response Joint Task Force.