Afghanistan, Oct. 31 -- Pakistan's military has expressed cautious optimism about its efforts to mediate between the United States and Iran, pointing to two visits by Army Chief Asim Munir to Tehran this month as a possible sign of progress.

Lieutenant General Ahmed Sharif Chaudhry, spokesperson for Pakistan's armed forces, made the remarks on Friday in his first interview since a high-level Pakistani delegation travelled to Tehran earlier this week, Reuters reported.

"Why would the Field Marshal be going twice if it is not for some positivity? So yes, of course," Chaudhry said when asked whether Munir's visits indicated progress.

"The word that we would use is always cautiously optimistic," he added.

Munir, who is leading Pakistan's me...