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:

Speaking at #UNSC VTC on Iranian nuclear issue, Amb. Zhang Jun
▶️called for upholding #JCPOA &amp; #UNSCR2231
▶️supported political and diplomatic solution
▶️urged US to stop illegal unilateral sanctions
▶️opposed US push for extending arms embargo on Iran https://t.co/RF0Q5XzMFr