Farmers burn olive branches in front of the Greek parliament during a protest in Athens, Friday, Feb. 12, 2016 (AP)
A bonfire staged by farmer burns outside of the Greek parliament in Athens during a rally against pension reform on February 12, 2016 (AFP)
Farmers arrive on their tractors outside the Greek parliament during a protest against pension reform and tax issues, on February 12, 2016 (AFP)
Farmers clash with police officers blocking the entrance of the Agriculture ministry in Athens, during a demonstration against pension reform on February 12, 2016 (AFP)
Farmers determined to stay to continue their protests stand by their tents in Athens' central Syntagma square opposite the Greek parliament during a rally against pension reform on February 12, 2016 (AFP)
Greek farmers and protesters from the Communist-affiliated trade union PAME take part in a demonstration against planned pension reforms in front of the parliament building in Athens, Greece February 13, 2016 (Reuters)
Supporters of the Communist-affiliated trade union PAME and Greek farmers take part in a protest against pension reform and tax issues, on February 13, 2016 in Athens (AFP)
Supporters of the communist-affiliated union PAME shout slogans during an anti-government rally in front of the parliament in Athens, on Saturday, Feb. 13, 2016 (AP)
Farmers take part in an anti-government rally in front of the parliament in Athens, on Saturday, Feb. 13, 2016 (AP)
Farmers take part in an anti-government rally in front of the parliament in Athens, on Saturday, Feb. 13, 2016 (AP)