Sure sounds like an invasion. Washington Times:

A “violent mob” of illegal immigrants tried to ring in the new year by rushing the border in California, and Border Patrol agents fired tear gas at them to repel the incursion, Homeland Security officials said Tuesday.

About 150 people were involved in the attempt to climb over and burrow under a section of border fence in San Diego on New Year’s Eve night. After they were blocked, one group grew more combative, firing rocks over the border to try to hit agents.