Watch for upcoming events.
World War II
http://www.history.com/topics/world-war-ii
Korean War
http://www.history.com/topics/korean-war
Vietnam War
http://www.history.com/topics/vietnam-war/vietnam-war-history
Iraq War
http://www.history.com/this-day-in-history/war-in-iraq-begins
Afghanistan War
https://www.britannica.com/event/Afghanistan-War