The breakup of the Soviet Union—long the principal source of training, material, and credit for the Syrian forces—may have slowed Syria's ability to acquire modern military equipment. It has an arsenal of surface-to-surface missiles. In the early 1990s, Scud-C missiles with a  range were procured from North Korea, and Scud-D, with a range of up to , is allegedly being developed by Syria with the help of North Korea and Iran, according to Zisser.