Thursday's announcement followed a recent push for the group to abandon violence permanently. That effort was led by international figures who include Sinn Fein leader Gerry Adams of Northern Ireland and former U.N. Secretary-General Kofi Annan.
In a nationally televised address hours after the announcement was posted, Spanish Prime Minister Jose Luis Rodriguez Zapatero termed ETA's announcement as being of "transcendental importance" and a "victory for democracy."
"Ours will be a democracy without terrorism, but not without memory," Zapatero said, referring to 829 people killed by ETA and their families.
The prime minister praised Spanish police, Civil Guard personnel, the intelligence agency and judicial authorities "who have contributed to this end." Zapatero also singled out France -- which has traditionally been used as a rearguard base for ETA -- and its president, Nicolas Sarkozy, for their assistance.
The prime minister said that it would be up to Spain's next government -- which will be formed after parliamentary elections on November 20 -- to lead the peace process.
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