Rock Island Arsenal, IL – The Army’s senior civilian installation leaders from throughout Installation Directorate – Sustainment (ID-S) gathered here

Meanwhile, heavily armed Mexican security forces kept up their battle with cartel gunmen following the killing that sparked a surge in violence and put the country on edge. Cartel fighters continued to block roads as smoke rose on the outskirts of the town in the state of Jalisco.

"El Mencho," the powerful drug lord the Mexican army killed in a daring raid Sunday, had created what security experts say was one of the most advanced security operations devised to protect a cartel boss.

U.S. Army senior leaders from across armored and mechanized formations gathered at the Mission Training Complex here Jan. 21 to