The National Defence League (NDL) was an independent conservative political party, founded in 1891 by MLC Richard Baker in South Australia as an immediate response to the perceived threat from Labor. Though renamed the Australasian National League (ANL) in 1896, it was still often referred to by its former name. It lasted until the 1910 election, after which it merged with the Liberal and Democratic Union and the Farmers and Producers Political Union to become the Liberal Union. Many candidates and MPs received election endorsement only rather than being chosen as an official candidate.