The PEEA's authority was significantly reinforced after the establishment of the National Council (Ethniko Symvoulio) in 1944. The National Council was an assembly elected by secret elections organised by the PEEA in late April 1944 in both the liberated parts of Greece and the still-occupied cities, mainly Athens. Approximately one million people took part in these elections, which are notable for the fact that for the first time in Greece, women were allowed to vote. The Council first converged in Koryschades, a mountain village of Evrytania, from 14-27 May 1944. Its main act was voting a resolution, an extract of which is quoted:
The National Council, composed of representatives of the whole of the Greek people, who converged to declare its inexpugnable will to fight to the bitter end for the liberation of the country, the destruction of fascism and the restoration of its national unity and popular sovereignty, willing to determine the way all authorities are exercised in free Greece, votes:
- Article 1: It ratifies the charter establishing Political Committee of National Liberation of March 10, 1944.
- Article 2: All powers derive from the people and are exercised by the people. Self-administration and popular judicature are fundamental institutions of the public life of the Greeks.
- Article 3: The National Council is the supreme instrument of popular sovereignty. The PEEA possesses all powers determined in this decree.
- Article 4: The People's liberties are sacred and inviolable. The struggling nation will protect them from any threats no matter where they are coming from.
- Article 5: All Greeks, men and women, have equal political and civil rights.
- Article 6: Employment is a fundamental social function and generates rights for the enjoyment of life’s goods.
- Article 7: The People's language is the formal language for all manifestations of public life and for all educational grades."
The PEEA's first president was Evripidis Bakirtzis, the former leader of National and Social Liberation (EKKA). On April 18 Alexandros Svolos, a prominent professor of constitutional law of the University of Athens, took his position and Bakirtzis became vice-president. Not only communist leaders but also many progressive bourgeois, who had nothing to do with communist ideas, participated in the PEEA.
ELAS not only resisted German and Italian occupation forces but also re-organised life in the mountainous areas (i.e. the biggest part of Greece) it controlled. EAM, with the co-ordination and organization of the PEEA, helped the local people organise schools, hospitalise refugees from the big cities and protect the crops from German looting. Amateur actors and musicians created travelling theatres and bands, something that most rural communities had never seen or heard before. Another achievement of ELAS (due partially to the progressive ideas and partially to the lack of men) was to promote women liberties. Young girls, who until then were working at home or the fields, had the opportunity to educate and express themselves. There were also improvised telecommunications either by telephone lines or by messengers and systems of re-distribution of food-resources, so that no village would starve.