The "Multi-Resource Search" allows simultaneous searching of the AHCO Digital Document System, AHCO Research Catalog, Military Education and Research Library Network (MERLN), US Army Center of Military History website and the US Army War College Library catalog. This can be done by entering one or more keywords in the search box. The results page will indicate the number of relevant hits found in each resource. These hits can be reviewed by clicking the appropriate "View" link on the right side of the page. The search results may be further refined by clicking "Refine" at the top of the results page.