Revolutionary Struggle has claimed responsibility for the attack.
Revolutionary Struggle:
The group, which espouses communism, has continued its anti-Western stance after the Cold War. November 17 bitterly opposes Greek participation in NATO. It also favors ousting U.S. military bases from Greek territory, severing Greece ’s ties with the European Union, removing the Turkish military presence from Cyprus , and launching an anti-capitalist popular uprising against the Greek middle and upper-classes. In December 2000, after killing a British general, the group released a communiqué defending itself against mounting public criticism by trying to appeal to populist, pro-Serb sentiments and urging Greeks to defy the government’s counterterrorism efforts.
http://www.tkb.org/Group.jsp?groupID=102
"GROUP PROFILE
Revolutionary People's Struggle
Mothertongue Name:
Epanastatikos Laikos Agonas (ELA)
Aliases: ELA, National Front (Greece), Revolutionary Popular Struggle
Base of Operation: Greece"
(Note: Click link above for furhter details)
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http://news.bbc.co.uk/2/hi/europe/6254399.stm
Last Updated: Friday, 12 January 2007, 10:22 GMT
"Rocket hits US embassy in Athens"
ARTICLE SNIPPET: "The US envoy condemned the "very serious attack", as fire engines and police cordoned off the area.
Greece's Public Order Minister Vyron Polydoras said it was "very likely" a domestic group was behind the attack.
He said police were investigating claims that a left-wing radical group, Revolutionary Struggle, was responsible."