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:

Day of Solidarity in the Fight against Terrorism is observed in Russia annually on September 3. Today we remember victims of all terrorist acts that hit our country, and pay tribute to officers of security services who died in anti-terrorist operations and while saving hostages https://t.co/wSFeFhU4rv