"We had a 200-percent increase in traffic across the border", said Ducey.
The only holdout border state was California, led by Democratic Gov.
South Carolina Gov. Henry McMaster, a Republican, provided to ship members of his state's Guard as correctly.
About 225 Guardsmen will form the first wave of Operation Guardian.
Texas Gov. Greg Abbott has had guardsmen on his border with Mexico for some time.
South Carolina Adjutant General Robert Livingston says details including how many troops the state will send, their duties and how long they will stay will have to be worked out. But Napier, a Republican, said such fears have been allayed.
On the same day, Arizona Gov. Doug Ducey (R) said the Arizona National Guard would send 338 troops to the southern border.
Susana Martinez's office said that more than 80 troops would deploy later this week.
Officials also say soldiers serving in the border operation will require training and background checks.
The Republican governors of three states alongside the U.S. -Mexico border pledged a whole of 1,600 Nationwide Guard troops to the frontier Monday - close to half the utmost amount President Trump requested to help crack down on illegal immigration and smuggling. 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.
Texas announced Monday it will send at least 1,000 troops there.
"We may be in this for the long haul", he said.
The governor says some Guard members may be armed if they are posted to locations where they could face danger.
Brown's spokesman, Evan Westrup, said Monday that California is still reviewing President Trump's request for use of the state's National Guard members.
National Guard members have started arriving at the US-Mexico border, with more expected as federal government officials continue to discuss what they will do about illegal immigration. The troops were sent to the town of Marana, northwest of Tucson, according to Ducey's spokesperson, Patrick Ptak.
"Arizona welcomes the deployment of National Guard to the border".
Trump has talked about he wishes to utilize the military on the border until progress is made on his proposed border wall, which has principally stalled in Congress. Safety Secretary James Mattis last Friday authorised paying for as a lot as 4,000 Nationwide Guard personnel from the Pentagon value vary by way of the tip of September.
The smaller group of 113 Guardsmen will "provide support to federal, state, county, tribal and local law enforcement agencies in stopping illicit activity including the flow of trafficked people, criminals, narcotics, weapons, and ammunition trafficked in the state", a second press release said.