Poland once sent the U.S. a birthday card. With 5M signatures(washingtonpost.com)

https://www.washingtonpost.com/news/retropolis/wp/2017/07/03/americas-standing-may-be-tumbling-now-but-once-upon-a-time-poland-sent-the-u-s-a-birthday-card-with-5-million-signatures/