The K1A1 main battle tank (MBT) is an upgraded version of the K1 MBT.
Designed and developed by Hyundai Rotem, it came into service with the South Korean Army in 2001, despite the fact that production of the first vehicle had already been completed in 1996.
A total of 484 units were produced between 1999 and 2010.
To a large extent, it is similar to the US M1A1 Abrams in firepower and protection mechanism.
One remarkable fact is that a number of the K1A1's major components, like its engine, transmission and fire control systems, were imported.