Israel has a diverse inventory of tanks, including indigenous and foreign designs. The predominant tank in the Israeli inventory is the Merkava MkIV, which is an Israeli-made tank. Israel also operates other Merkava models, such as the MkI, MkII, and MkIII, as well as the M1 Abrams. In addition to tanks, Israel operates numerous armored personnel carriers and infantry fighting vehicles. Israel has a long history of developing and upgrading tanks, and in recent years, it has unveiled new tanks such as the Barak and the "5th generation" Merkava.