India, Sept. 20 -- US-Israel-Iran War Latest Live News: The Strait of Hormuz has once again become a major pressure point in the US-Iran conflict, with Tehran tying any reopening of the crucial waterway to American commitments while Washington warns that tensions across the Middle East could worsen quickly.

Iranian Parliament Speaker Mohammad Bagher Ghalibaf said Sunday that Iran has already communicated its conditions through intermediaries and will not reopen the strait until those demands are addressed.

At the same time, the United States has issued fresh security warnings to Americans across several Middle Eastern countries. The alerts urge citizens to exercise "heightened vigilance" and warn about possible flight cancellations, air...