Other combat systems designed for military combat were introduced elsewhere, including European Unifight, Soviet/Russian Sambo, Army hand-to-hand fight, Chinese military Sanshou/Sanda, Israeli Kapap and Krav Maga. The prevalence and style of hand-to-hand combat training often changes based on perceived need. Elite units such as special forces and commando units tend to place higher emphasis on hand-to-hand combat training.