The new leader of the British Labour Party is set to repudiate and apologize for British participation in the U.S.-led coalition invasion of Iraq in 2003.

The move will take place at a Labour Party conference this weekend, according to The Independent, with the party distancing itself from a key part of former Labour Prime Minister Tony Blair's legacy.

The U.K. contributed the second most resources of any country participating in the invasion and subsequent occupation, following the United States.

Jeremy Corbyn is the principal political antagonist of Prime Minister David Cameron of the Conservative Party, heading up "her Majesty's Loyal Opposition" in Parliament. Cameron voted for the Iraq war.

Corbyn was a fringe, dissenting figure in the Labour Party in 2002 and 2003, when the decision to go to war was made. Now in charge, the democratic socialist Corbyn will seek to indicate to the British electorate and the world just how much his party's thinking has changed.

Blair, for his part, excoriated Corbyn in the op-ed pages of The Guardian, and warned against Labour making him leader. The voters largely ignored him, with Corbyn winning near 60 percent of the vote in a four-way race.

Corbyn openly campaigned on making such a statement if elected, and it appears he is quickly following through on his pledge.

"Let us say we will never again unnecessarily put our troops under fire and our country's standing in the world at risk," Corbyn said in August. "Let us make it clear that Labour will never make the same mistake again, will never flout the United Nations and international law."