Agreement between the United States of America and Poland regarding claims
On July 16, 1960 the United States of America and Poland signed an agreement regarding claims of nationals of the United States. The Article 4 of this agreement states: After the entry into force of this Agreement the Government of the United States will neither present to the Government of Poland nor espouse claims of nationals of the United States against the Government of Poland to which reference is made in Article I of this Agreement. In the event that such claims are presented directly by nationals of the United States to the Government of Poland, the Government of Poland will refer them to the Government of the United States.
Claims Agreement 1960 between Poland and the USA with annex and exchange of notes