America's new front: First pictures emerge of the National Guard patrolling the US-Mexico border on Trump's instruction

A National Guard troop watches over Rio Grande River on the border in Roma, Texas on Wednesday. The deployment of National Guard members to the U.S.-Mexico border at President Donald Trump's request was underway Tuesday with a gradual ramp-up of troops under orders to help curb illegal immigration

The first images have emerged Wednesday of National Guard members patrolling along the US-Mexico border following a call from the president to send troops to what he calls a crisis of migrant crossings and crime. This, after several border states have pledged to send troops to fulfill the president's wishes to use active National Guard members to patrol the border. The Republican governors of three southwestern border states on Monday committed 1,600 National Guard members to the U.S.-Mexico border, giving President Donald Trump many of the troops he requested.

Meanwhile on Wednesday, California Gov. Jerry Brown accepted Trump's call to send their National Guard to the Mexican border, but rejected the White House's portrait of a burgeoning border crisis and insisted that his troops will have nothing to do with immigration enforcement.

A soldier from the Texas Army National Guard keeps watch on the banks of the Rio Grande on Wednesday in Roma, Texas sits inside of a tank

Soldiers from the Texas Army National Guard keep watch on the banks of the Rio Grande, where some of them will be armed where necessary (pictured Wednesday)