Sentence:  a special fund created for that purpose pursuant to subsection ( a ) of this section any amounts hereafter paid , in United States dollars , by a foreign government which has entered into a claims settlement <WSD>agreement</WSD> with the Government of the United States as described in subsection ( a ) of section 4 of this Title . 
Meaning of the word marked with <WSD> tags:  the statement (oral or written) of an exchange of promises