The Federal Parliament is to give the final say on whether troops are deployed to overseas military conflicts, in the aftermath of Australia's 20-year involvement in Afghanistan.

The Senate will today debate a bill put forward by the Greens which would require the government to seek approval from both houses of Parliament before Australian Defence Force (ADF) personnel are sent to wars outside Australian territories.

Greens Peace Spokesperson Senator Jordon Steele-John says the proposed bill would "ensure that we can never again be drawn into a colonial war at the behest of the United States."