1) Military phrasing 2) Military word 3) Military term 4) Official military term 5) Team spirit 
[magazine] Esprit de Corps is a Canadian military magazine operating out of Ottawa, Ontario, by publisher and former soldier Scott Taylor. The magazine reports on Canadian and international military issues, politics, military history and current events. Esprit de Corps was originally designed to be an in-flight reading magazine in 1988 for ...
[n] - the spirit of a group that makes the members want the group to succeed
morale noun the spirit of a group that makes the members want the group to succeed
a sense of unity and of common interests and responsibilities, as developed among a group of persons closely associated in a task, cause, enterprise, etc.