Over the past year, Iran and the United States have engaged in fitful, indirect talks in Vienna to revive a 2015 nuclear deal that then-President Donald Trump reneged on in 2018 and that Iran, in turn, began violating in 2019. 
Mu chaka chatha, Iran ndi United States akhala akukambirana mopanda chindunji komanso mozungulira ku Vienna kuti abwezeretse pangano la nukiliya la mu 2015 lomwe mtsogoleri wa nthawi imeneyo, a Donald Trump anaphwanya ndipo pambuyo pake Iran inachita chimodzimodzi mu 2019.