Pakistan, June 20 -- The interim understanding between the US and Iran has moved the Middle East away from immediate war, but its first serious test has arrived almost as quickly as the ink on the text reached Washington. The White House has sent the agreement to Congress, a 60-day negotiating clock has begun, and the Strait of Hormuz, sanctions relief, frozen funds, nuclear assurances and regional security are now part of a compressed diplomatic timetable. Yet the future of this entire arrangement may be decided first in Lebanon, where Israel and Hezbollah are said to have agreed to a ceasefire that remains burdened by mistrust, competing interpretations and the continued presence of Israeli forces in parts of the south.

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