Regimental Chief Warrant Officer

By Chief Warrant Officer Four Humphrey B. Hills II

Article published on: April 1, 2023 in the 2023 Edition of Army Chemical Review

Read Time: < 3 mins

U.S. Army Chief Warrant Officer Four Humphrey B. Hills II in dress uniform smiling in an official portrait, with the American flag and the Army flag visible in the background

Chief Warrant Officer Four Humphrey B. Hills II

Greetings, fellow Dragon Soldiers, Family members, and civilians!

As we continue to support the Army with modernization efforts, we are refining warrant officer Professional Military Education to support the pivot to large-scale combat operations and multidomain operations. This is the opportune time for us to look at Professional Military Education, as we will execute a critical-task site selection board in the 3d quarter of Fiscal Year (FY) 2023 in order to redefine the tasks that will be instructed in support of large-scale combat operations, multidomain operations, and the Army of 2030 and beyond. The focus of these modifications will be on our core tasks (assess, protect, mitigate) and on leader development throughout our cohort.

This has been an exceptional year for our Regiment and the chemical, biological, radiological, and nuclear (CBRN) warrant officer cohort. As we celebrate 105 years of prestigious Chemical Regiment service to our Nation and 12 years of our elite warrant officer cohort, I am excited to announce that, as of 1 June 2023, the Army will experience the first wave of CBRN chief warrant officers four amongst its ranks. With the achievement of this new milestone, we continue to carve out our piece of illustrious Regimental history. This is a momentous occasion and a step toward ensuring that we retain our finest talent for continued service to our country.

With recruiting remaining one of our top priorities, it is imperative that we continue to seek out the most qualified individuals aspiring to become warrant officers. Consequently, eight of our Active Component CBRN noncommissioned officers were selected to attend Warrant Officer Candidate School. These outstanding individuals were chosen from more than 50 packets submitted to the FY 23 Warrant Officer Selection Board. Please join me in congratulating the Army’s newest Active Component CBRN warrant officer candidates and their Families:


  • Sergeant First Class Christopher D. Aguirre.
  • Sergeant First Class Kevin J. Calorobles.
  • Sergeant First Class Jonathan T. David.
  • Sergeant First Class Kenneth L. Holloman.
  • Sergeant First Class Andrew K. Lasson.
  • Staff Sergeant Hwanglyong J. Hwangbo.
  • Staff Sergeant Dominique D. Lockwood.
  • Staff Sergeant Tiffany M. White.

We continue to promote and highlight diversity, equality, and inclusion as we build our future fighting force. Telling our “Army stories” is one way that we can reconnect with, and regain the trust of, the American public—and it’s something with which we must be comfortable. This is an all-hands operation; it will take everyone broadcasting our message about what we do each day as we continue to protect our Nation’s freedom.

In conclusion, it continues to be an honor and a privilege to serve as your 4th Regimental Chief Warrant Officer. I appreciate the continued support, hard work, dedication, and daily sacrifice from each of you throughout this journey. It has been and continues to be rewarding. Please remember our deployed brothers and sisters in arms, along with their Families, until they come home.

Stay safe, calm, and absolutely motivated, and continue to care for yourself and each other. Be All You Can Be!


Dragon Soldiers! CBRN Warriors!

Elementis, Regamus, Proelium—We rule the battle by means of the elements!

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