In what's being called a major diplomatic breakthrough, the United States and Iran have announced a preliminary deal to end hostilities and reopen the crucial Strait of Hormuz, with a formal MoU expected to be signed in Geneva. While Washington has projected the move as a major win and global markets have reacted positively, Tehran has struck a cautious note, saying trust must still be earned. Is this the beginning of lasting peace, or just a temporary pause in a long-standing conflict?