West Germany had yet to pay reparations to non-Jewish recipients for the damage inflicted in Poland. In 1972, West Germany paid compensation to Poles that had survived pseudo-medical experiments during their imprisonment in various Nazi camps during the Second World War. In 1975, the Gierek-Schmidt agreement was signed in Warsaw. It stipulated that 1.3 billion DM was to be paid to Poles who, during Nazi occupation, had paid into the German social security system but received no pension. After German reunification in 1990, Poland demanded reparations again, as a reaction to claims made by German refugee organizations demanding compensation for property and land repossessed by the new Polish state that they were forcibly deported from as stipulated in the Potsdam Agreement and the aforementioned Oder-Neisse border. In 1992, the Foundation for Polish-German Reconciliation was founded by the Polish and German governments, and as a result, Germany paid Polish sufferers approximately 4.7 billion zł. Between 1992 and 2006, Germany and Austria jointly paid compensation to surviving Polish, non-Jewish victims of slave labour in Nazi Germany and also to Polish orphans and children who had been subject to forced labour. The Swiss Fund for the Victims of the Holocaust paid compensation between 1998 and 2002 to Polish Jews and Romani who were victims of Nazi Germany. There is an ongoing debate among Polish international law experts whether Poland still has the right to demand war reparations, with many arguing that the 1954 declaration was not legal as Poland was not a sovereign state. Furthermore, the 1954 declaration only applied to the former state East Germany and not West Germany. The reparation issue arose again in 2017 with comments made by Polish government officials from the Law and Justice party. According to a statement made by the German government on the issue, the issue was resolved in 1953 as Poland had declined to continue receiving any payments from East Germany. This claim is countered by Polish commentators who stated that the then Polish government was under the sway of the Soviet Union and that its 1953 refusal is non-binding. Jarosław Kaczyński, leader of the Law and Justice party, has continuously made statements on the reparations issue from the beginning. Sigmar Gabriel, Foreign Minister of Germany rejected the reparations issue again on behalf of the German government. As a result of the Nazi German occupation, much of Greece was subjected to enormous destruction of its industry (80% of which was destroyed), infrastructure (28% destroyed), ports, roads, railways and bridges (90%), forests and other natural resources (25%) [Scholarly sources required.]  and loss of civilian life (7.02–11.17% of its citizens).