The 1970s were characterized by internal conflicts between moderate and more radical members of the PSP. The most important reason for this was the radicalization within the PvdA. A new, more radical, generation had gained power in the PvdA. They wanted to form a majority cabinet with only leftwing parties. To achieve this they formed the Progressive Accord with the new left-liberal Democrats 66 and the progressive Christian PPR. The PSP also participated in these talks but broke off, because the majority of the PSP congress thought this alliance was neither pacifist nor socialist. The cooperative minority clashed strongly with the isolationist majority. In the 1971 elections the party lost two of its four seats, while the PvdA won seats.