Peter Gration

[3][4] Peter attended Scotch College, Melbourne from 1945 until matriculation in 1948, where he was active in the school's cricket, football, and athletics teams.

[5] He completed a tour of duty during the Vietnam War between 1969 and 1970, during which time he was posted as commanding officer of the 1st Australian Civil Affairs Unit with the rank of lieutenant colonel.

[8] In October 1992 Gration visited Sweden and Jämtland Wing (F 4) where he studied the Swedish Air Force's next airborne surveillance radar system, the FSR-890.

During 1994–1995, Gration served as a consultant to the Department of the Prime Minister and Cabinet and had primary responsibility for negotiation of a security agreement with Indonesia.

In an article he wrote for The Age, Gration declared: "... there are insufficient grounds for war, which is unnecessary and may lead to unpredictable and potentially disastrous consequences.