UNITED NATIONS (AP) — A proposed U.N. resolution threatens Iran with sanctions or other measures if it doesn’t halt attacks on ships in the Strait of Hormuz, stop imposing “illegal tolls,” and disclose the placement of all mines to allow freedom of navigation. The draft resolution, co-sponsored by the United States and Gulf nations and obtained Tuesday by The Associated Press, also demands that Iran “immediately participate in and enable” United Nations efforts to establish a humanitarian corridor in the strait to enable the delivery of vital aid, fertilizer and other goods. It is the latest diplomatic effort by the U.S. and its Gulf allies after a watered-down resolution aimed at opening the strait was vetoed by China and Russia hours before Washington and Tehran announced a temporary ceasefire in early April. U.S.…