Department of Homeland Security Secretary Kristjen Nielsen, who announced the deployment Wednesday, didn't offer details about how the National Guard would be used along the border, but said they would serve in a similar capacity as they did when previous administrations deployed troops to the border - aerial surveillance and support functions.
Greg Abbott (R) on Monday said he would increase the number of troops the state will send to the border from 250 to at least 1,000.
On their way to the border, Guardsmen will pass through a National Guard Base at Pinal Air Park just north of Marana.
Doug Ducey met with border sheriffs about Monday's deployment of National Guard troops to the USA border with Mexico. On Monday, Abbott told San Antonio radio station KTSA that Texas will significantly ramp up its commitment to President Trump's call over the next several weeks. In a press launch, the Guard talked about the troops will help frequent laws enforcement stem "the motion of trafficked people, criminals, narcotics, weapons, and ammunition trafficked inside the state".
New Mexico has not yet deployed any National Guard members to the U.S. -Mexico border in response to President Donald Trump's call to use troops to fight illegal immigration and drug trafficking.
There is not a end date for the deployment, Abbott talked about: "We may be on this for the prolonged haul".
Aaron Hull, chief patrol agent of the U. S. Customs and Border Protection's El Paso Sector, speaks where construction on a new segment of the border wall will be built, near Santa Teresa, N.M., Monday, April 9, 2018.
If 4,000 troops were deployed, that would be about double the current United States military presence in Syria and about half as many as the number of USA troops in Iraq. "You show me somebody who is for drug cartels or human trafficking or this ammunition that's coming over a wide-open and unprotected border here".
Governors who send troops retain command and control over their state's Guard members and the US Government picks up the cost.
The Republican Ducey in a tweet Monday said more of the state's Guard members will be deployed on Tuesday.
California National Guard spokesman Lt. Col. Tom Keegan said last week that any request will be "promptly reviewed to determine how best we can assist our federal partners".
The National Guard has previously been deployed to help patrol the southern border, including in 2010 under former president Barack Obama, and from 2006-2008 under George W. Bush.