By Newsbreak Producer Tashlan Naidoo - The United States and Iran have launched tense, fragile peace talks in Switzerland, but Tehran has already re-closed the strategic Strait of Hormuz over ongoing fighting in Lebanon. President Donald Trump has warned of renewed military action if Iran fails to restrain its Lebanese allies, though Vice President JD Vance noted that Washington wants to "turn over a new leaf" with relations. Analysts warn the weak agreement hinges entirely on an Israeli de-escalation, with Iran halting all nuclear talks until a ceasefire is secured and promised economic relief is delivered. Wits University International Relations expert Prof. John Stremlau...