From The Washington Post:
Commandos Trained in Terror Tactics In Effort to Maintain Military Threat
SEOUL -- North Korea has massively increased its special operations forces, schooled them in the use of Iraqi-style roadside bombs and equipped them to sneak past the heavily fortified border that divides the two Koreas.
By expanding what was already the world's largest special operations force, the North appears to be adding commando teeth to what, in essence, is a defensive military strategy. The cash-strapped government of Kim Jong Il, which struggles to maintain and buy fuel for its aging tanks and armor, has concluded it cannot win a conventional war, according to U.S. and South Korean military officials.
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My Comment: This is a major change for the North Korean military .... I guess it is a recognition that with no fuel and antiquated military equipment, they must now adjust.