"We maintain that improving the bilateral defense relations will lead to increasing the Bolivian government's deterrence power," Ashtiani was quoted by the official news agency IRNA as saying.
A new wave of protests is sweeping across Iran as retirees and workers demonstrate against harsh living conditions and skyrocketing inflation in the country, which has been hit hard by international sanctions over the government's nuclear program and its suppression of human rights.
A court in Iran on May 30 began the closed-door trial of a female journalist on charges linked to her coverage of a Kurdish-Iranian woman, Mahsa Amini, whose death in custody last year sparked months of unrest.
The family of executed protester Majid Kazemi says Iranian authorities have launched a campaign against it, suspending Kazemi's father's retirement benefits and firing his sister from her job just 10 days after his death sentence was carried out.