The United States Army announced last month that it would raise the maximum enlistment age for Americans from 35 to 42 to expand its pool of eligible candidates amid recruiting challenges in recent years.
On March 20, an updated version of U.S. Army Regulation 601-210 outlined the changes, which include eliminating rules that require anyone with a single conviction for marijuana possession or drug paraphernalia to receive a waiver to enlist.
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Government data shows that while the U.S. Army has met its recruiting goals over the past two years, it fell short in 2022 and 2023 and has consistently failed to meet Army Reserve goals, shortfalls that analysts have attributed to several potential factors.
The new age limit was announced during the US-Israel war over Iran, to which youth have expressed widespread opposition.
Here’s what you need to know about the changes.
When will the regulation come into effect?
The updated version of Army Regulation 601-210 will officially take effect Monday, April 20.
What did the army say on the changes?
The U.S. Army announced updated enlistment regulations on March 20, with the changes scheduled to take effect a month later on April 20 and apply to the Regular Army, Army Reserve, and Army National Guard.
The maximum age for enlistment has been raised from 35 to 42, and previous restrictions requiring anyone with a single conviction for possession of marijuana or drug paraphernalia to obtain a waiver to enlist have been eliminated.
Do these changes apply to the entire US military?
The changes announced in March are specific to the US military.
Military news outlet Stars and Stripes reported that these changes bring the Army more in alignment with the maximum enlistment age of other branches of the military, such as the Air Force, Navy, Coast Guard and Space Force, which accept recruits in the early 40s.
The maximum age of enlistment for the US Marines is 28 years.
What factors explain the change?
Although the US Army has not commented on the reasons for the increase, data from the US Army Recruiting Command shows that the Army is struggling with recruitment challenges.
While the Army met its recruitment targets by 100 per cent in 2025 and 2024, it missed its target in 2023 by about 23 per cent and in 2022 by 25 per cent.
That data also shows that the Army has fallen short of recruiting targets for the Army Reserve for the past six years in a row.
According to military news outlet Army Times, citing data from a U.S. Army spokesperson, the average age of Army recruits has increased in recent years to 22.7, from 21.7 in the 2000s and 21.1 in the 2010s.
The U.S. Army Recruiting Command has attributed such challenges to issues such as changes in the labor market, limited awareness about military service, and a shortage of qualified youth due to obesity, drug use, and mental health issues.
In a 2018 survey, potential injury and death, post-traumatic stress disorder (PTSD), isolation from family and friends, and other career concerns were listed as the top reasons for youth not joining the military.
Is the change related to the war in Iran?
Analysts have been discussing for years the possibility of raising the hiring age as a means to address recruitment challenges, with a 2023 research report by the Rand Corporation, an American think tank, calling “older youth” a “significant, largely untapped, yet high-quality pool of potential recruits.”
Although the military has not suggested the change is linked to the US-Israel war over Iran, where US President Donald Trump had previously said he might deploy ground troops, some social media users immediately noted the timing of the announcement.
Some people in the online community joked that old supporters of the war would now be available for recruitment.
“They raised the age of enlistment to 42,” one X user said in response to a video of conservative commentator Ben Shapiro praising Trump’s decision to attack Iran. “Why are you still here?”
Polls have found that younger people are more likely to oppose a U.S. war on Iran than people age 65 and older, and polls in recent years have found that young people are generally more skeptical about U.S. intervention abroad than older generations.
A 2024 Pew Research Center survey found that 18 to 29-year-olds in the US were the only age group who viewed the military more negatively than positively, with 53 percent saying the military had a negative impact, while 43 percent said it had a positive impact.
How many people are currently in the US Army?
According to the Pew Research Center, there are approximately 1.32 million active members in the U.S. military. The US Army has the largest share, with about 450,000, while the US Navy is second with more than 334,000.
There are more than 317,000 in the Air Force, more than 168,000 in the Navy, about 42,000 in the Coast Guard and about 9,700 in the Space Force.
Data from the U.S. Army Recruiting Command shows that about 80 percent of recruits in the regular Army in 2025 will be men.
Black and Latino recruits also make up a larger share of Army recruits than their percentage of the population, accounting for about 27 percent of recruits each, compared with 14 percent and 20 percent of the general population, according to 2024 Census data.
About 40 percent of those who enlisted in the U.S. military were white, compared to about 57 percent of the general population.
