Kathmandu. Efforts to end the ongoing war between Iran and the United States are intensifying, with a high-level delegation from Qatar arriving in Tehran on Sunday.According to diplomatic sources, this visit is part of an effort to advance the mediation process before a potential peace agreement can be finalized.According to the Iranian news agency ISNA, a senior advisor to Qatar's Foreign Minister has been sent to Tehran. Another news agency, Tasnim, stated that the main objective of the visit is to review the latest developments regarding the diplomatic process.A diplomat familiar with the situation confirmed to AFP that Qatari negotiators...