The actor who starred in the TV show “Walker, Texas Ranger” wrote on Sunday that he thinks concerns about a possible military takeover of Texas might well be justified.

Actor Chuck Norris, who has become a prominent conservative activist, published a column on the conspiracy theory website WND that told readers not to trust what the federal government has been saying about a military training exercise known as Jade Helm 15.

Some conspiracy theorists have warned that the exercise, which is set to take place later this year in Texas and six other western states, may lead to a covert takeover of some of those states. Last week, Texas Gov. Greg Abbott (R) ordered the State Guard to monitor the operation.

“The U.S. government says, ‘It’s just a training exercise.’ But I’m not sure the term ‘just’ has any reference to reality when the government uses it,” Norris wrote in his column. “Whatever Jade Helm 15 actually is, I think it is more than coincidental that the FBI director just confessed in February that the presence of ISIS can be felt in all 50 states of the U.S. and that the Pentagon is suddenly running its biggest military training exercise with every branch of the military across seven Southwestern states.”

He also praised Abbott, who he said had attended a recent event for his karate charity. Norris said he “laughed as some progressives in the mainstream media tried to mock” Abbott’s decision to monitor the exercise.

The 75-year-old martial artist emphasized the importance of questioning the government throughout his column.

“If Washington wants to cool the embers of controversy, then it should quit stoking the fire, as with the posting of a map of Jade Helm 15 ‘just’ exercises that label some areas of the country, including Texas, as ‘hostile,'” Norris wrote. “I have an idea: If the government insists on running expanded military ops across seven Southwest states, why doesn’t it move all that ‘military training’ south and protect our borders at the same time?!”

He also stressed that no one blamed the troops themselves.

“Concerned Texans and Americans are in no way calling into question our brave and courageous men and women in uniform,” Norris wrote. “They are merely following orders. What’s under question are those who are pulling the strings at the top of Jade Helm 15 back in Washington.”

Norris wrapped up his lengthy rant about the true purpose of Jade Helm 15 by imploring Americans to not accept things at face-value when the government is the one doling out the explanation.

“Friends, when it comes to freedom, we must question, verify and vet everyone and everything,” Norris wrote. “We must never check our brains or blindly trust, especially the government. Rather, we must fight until our dying breaths for liberty, especially when it appears those in power are trying to knock down Old Glory.”