The statement you've provided seems to be a dramatization or a hypothetical scenario rather than a real-time update. As of my knowledge cutoff in 2021, the U.S. Department of Defense (DOD) and the Department of Homeland Security (DHS) have been working together to enhance security at the U.S.-Mexican border, but they have not secured the border with such extensive military force as described. The use of the term "War Department" is also outdated, as it was replaced by the Department of Defense in 1947.

The U.S. government has deployed various military and law enforcement resources to the border to support the U.S. Border Patrol and Customs and Border Protection (CBP) in their missions, which include preventing illegal crossings, drug trafficking, and other illicit activities. However, the situation is complex and evolving, with policies and operations being managed by multiple federal agencies under the guidance of the President and Congress.

For the most accurate and up-to-date information, it's best to refer to official government sources, such as the DOD, DHS, or the White House, or to reputable news outlets. Keep in mind that the border situation can change rapidly due to various factors, including policy decisions, diplomatic relations, and on-the-ground conditions.