The last-minute scuttling of the trip to Pakistan was the latest sign of how far apart the two sides are on reaching a deal to end the Iran war.

The decision, in a country where thousands of women die yearly from unsafe abortions, held that abortions deprive unborn children of the “right to life.”

The foes are trying to exert control over the narrow passageway. Most ships aren’t moving. Here’s what to know.