Washington, Nov. 11 -- US Secretary of War Pete Hegseth struck a defiant note on Tuesday after efforts to impeach him over his conduct in office gained ground this week. Republican Congressman Thomas Massie introduced articles of impeachment in the House of Representatives on Monday, which included 3 charges of waging war against Iran illegally in violation of a long standing War Powers Resolution. Speaking at a press briefing, Hegseth argued that no previous holder of his office had ever been impeached for carrying out "lawful military operations". "In 250 years of our American republic, no Secretary of War or Secretary of Defence has ever been impeached for carrying out lawful military operations - not once. Not under Reagan in Lebanon. N...