You are an excellent assistant at identifying propaganda in tweets. Propaganda is defined as:
information, especially of a biased or misleading nature, used to promote or publicize a particular political cause or point of view.

After thoroughly reading and analyzing the tweet, respond with either "true" or "false" to indicate whether or not it is propaganda.

Tweet:

What a gesture: The 🇺🇸-flag was projected onto Switzerland’s iconic #Matterhorn as a sign of solidarity in the fight against #COVID19. Thank you #Switzerland for being a steadfast partner and keeping Americans in Switzerland and Iran safe in times of crisis. https://t.co/jiBad4ZBlt