U.S.-Iran Tensions Shift to Regional Diplomacy and Proxy Violence Amid $29B Campaign Cost

In the last 24 hours, the direct military standoff between the U.S. and Iran has given way to complex regional maneuvering and internal instability. In Muscat, Oman and Iran inaugurated a joint committee dedicated to the Strait of Hormuz, a move seen as an effort to stabilize maritime trade and reduce external leverage over the critical energy corridor. This diplomatic shift occurs as the U.S. faces significant financial and readiness hurdles; recent intelligence assessments indicate the spring 2026 air campaign cost Washington $29 billion while failing to dislodge Iranian control over the Strait. Domestically, Iran is grappling with a surge in proxy violence. Two members of the Revolutionary Guard Corps (IRGC) were assassinated in Paveh near the Iraqi border, an attack Tehran attributes to Kurdish separatists supported by the U.S. and Israel. Meanwhile, diplomatic signals remain inconsistent. While Iranian officials publicly denied plans for technical meetings, President Trump stated on social media that Iran has requested a meeting in Doha. Sources suggest back-channel talks regarding the Middle East war accord’s implementation may be proceeding despite the public posturing.