On 28 November 1969, West German Ambassador to the United States Rolf Pauls signed the NPT at the State Department and delivered a statement and a detailed note. At the signing Secretary Rogers spoke about the treaty’s value, the “historic” importance of the West German signature, the U.S. understanding that the UN Charter “confers no right to intervene by force unilaterally in the Federal Republic of Germany,” and a reaffirmation of U.S. security guarantees to NATO and the Federal Republic.