Korean War - Shawano Casualties from Shawano County during the Korean War.
W.W. I Gold Star List Cobi Burke has transcribed these entries of Shawano County soldiers  who died in World War I.
WORLD WAR I - Shawano WORLD WAR I -- Company F 127th Infantry, 4th Regiment 
List of Civil War Veterans Buried in Shawano County Dave Maas has transcribed these entrees from the Shawano County Journal--1909.
Civil War Veterans by Jerry Dalum Jerry has done an excellent job of locating information on Shawano County in the Civil War...lots of data here.
Roster of Wisconsin Volunteers,
War of the Rebellion, 1861-1865
This site is great, not just for Shawano Civil War but for the entire State of Wisconsin. 
Alphabetical GRAVE REGISTRATION information


The National Archives has a separate list of Union soldiers who were buried at the United States Soldiers' Home in the period 1861 through 1918. Other separate lists name Union soldiers buried in national cemeteries, 1861 to 1865, with a few as late as  1886. These are arranged by name of cemetery, by military organization, and, for certain states, by name of the soldier. The name indexes are available for Connecticut, Delaware, District of Columbia, Iowa, Maine, Maryland, Massachusetts, Michigan, New Hampshire, New Jersey, Pennsylvania, Rhode Island, Vermont, and Wisconsin. 
World War II and Korean Conflict Veterans Interred Overseas The following is a  database at Ancestry.com in the "subscription section".  If you do not have a subscription and would like me to search the site, email me with the database name and the person's name that you are researching.
Where to Write for Copies of U.S. Military Records? Lists addresses of offices that have military records depending on which years/wars.
World War I Draft Registration Cards 


These registration cards (1917-1918) have already been microfilmed by LDS and are available to view at your local Family History Center. 
FHL # 1674982  WISCONSIN Shawano County, A - F
FHL # 1674983 WISCONSIN Shawano County, G - Z
World War II Draft Registration Cards 


A draft administered by the Selective Service System was re-inaugurated during World War II. Until recently, the registration cards for this war were stored in federal records  centers and were not generally accessible, but some National Archives regional archives are now processing them  and making them ready for examination. For example, the National Archives regional archives (Great Lakes region) at Chicago already has processed and made available the cards for Illinois, Indiana, Michigan, Ohio, and Wisconsin. Inquiries should be made at the regional archives nearest the place where registration occurred.  Other Selective Service System documents of a
 local or regional nature, dating from 1940, may be found in some National Archives regional archives  and sometimes fragments can be found among the holdings of state archives. Included in some of these holdings are lists of names of individuals who were sent to conscientious objectors' work camps in lieu of military service .  Wisconsin M559
Enumeration of Civil War Veterans, 1885; 1895; 1905


Special state censuses were taken using returns from county clerks listing veterans residing in Wisconsin during
 each of the three years shown above. Included are name, rank, and post office. Also included is name of unit or vessel; arranged alphabetically by county and thereunder by local military unit. The 1905 enumeration arranged the names alphabetically by Wisconsin military unit; organizations of other states; United States regular army; "colored" organizations; sailors; marines. These censuses are available in published volumes. 

And here are a few of my favorite sites which describe specific military engagements/wars.  Some are databases where you might find your missing ancestor/relative like I did.  Worth checking out.
American Civil War, 18611865
Spanish-American War, 1898
Philippine-American War, 18991902
World War I, 19141918 (U.S.,19171918) 
U.S. Naval Deaths, World War I
World War II, 1939-1945 (U.S.,1941-1945) 
Pearl Harbor Casualties (U.S.) 
Korean War, 19501953
Vietnam War, 19611973
Persian Gulf War, 19901991