I think Iran/N korea would join in if after the retoric of the Axis of Evil was followed up by actions. And don't forget Syria has the largest Armed forces in the middle east. They are pretty well equiped to (as per 1999):-
http://www.state.gov/www/background_notes/syria_0499_bgn.html<snip>
National Security
President Asad is commander in chief of the Syrian armed forces, comprising some 400,000 troops and a substantial number of reservists. Males serve 30 months in the military upon reaching the age of 18. About 30,000 Syrian soldiers are currently deployed in Lebanon.
The break-up of the Soviet Union, long the principal source of training, materiel, and credit for the Syrian forces, has forced Syria to find other military suppliers. Syria has in recent years purchased tanks from Slovakia and Russia, howitzers from Bulgaria, and SCUD missiles from North Korea. Syria received significant financial aid from Gulf Arab states as a result of its participation in the Gulf war, with a sizable portion of these funds earmarked for military spending. Besides sustaining its conventional forces, Syria has sought to improve its unconventional weapons capability. While expanding its missile force, Syria continues to develop its chemical weapons capability.
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