over time. As a result, these boots were very uncomfortable until broken in and often resulted in blisters. They were replaced in 1858 with an improved version generally known as Jeff Davis boots after Jefferson Davis, the Secretary of War who re-equipped the army in the 1850s. These were used until the 1880s. 20th Century – present Australia Since 2000, the Australian Defence Force, primarily uses the Redback Terra Combat Boot as a replacement for the Vietnam War-era General Purpose combat boots. It was given a limited number of tests in 1999, and was later distributed in 2000. Despite the boot's general aptitude for the tasks which the ADF had first put it in place for, it still had major flaws. 90% of all negative feedback from soldiers was about its inappropriate sizing, having only 43 different sizes. Many also claimed that its sole would rot under worst-case tropical circumstances. Various military personnel have also used Rossi boots. In mid 2013 a boot trial was undertaken by the ADF to find a replacement for the issued Redback Combat Boot. Boots trialled included updated versions of the Redback Boot as well as various off the shelf boots. At the conclusion of the trial the Danner TFX 8 was selected as the new ADF combat boots: they were comfortable in hot weather and provided good support. However these were found to fail prematurely and were never issued on a large scale. As a result, Redback were tasked with once again providing a range of combat boots to the ADF including a General Purpose boot, a Jungle Style boot and a Flame Resistant boot. These boots are being issued on a very limited basis and are currently undergoing limited testing. However early reports are not favourable with complaints of failing eyelets and lack of water resistance. Danners are still being retained as a 'Desert' boot or for those who don't fit the current boot. As of December 2017 the Redback Terra style combat boot is still the standard issue combat boot. Argentina In the early 20th century, Argentine soldiers wore hobnail boots with leather gaiters as well as jackboots. The combat boots worn during the Falklands War came with durable stitched rubber soles. These boots continue to be worn today in addition to the later pattern with "EA" stamped on the leg. Belgium Belgian combat boots are marked by the abbreviation "ABL" (Armée