We live on a large 250 acre ranch 25 miles from the harbor in san diego ca at an altitude of 3,000 feet. we have a large concrete observation deck where we can see mexico, part of the san diego harbor, point loma and up to oceanside ca. on august 29th, 2018 my son and i were at the look out point at around 8:15 pm and saw this huge ufo come across the mexican border and stop near the navy base in san diego, about 600 feet above the land surface, and it stayed there for about 18 minutes gather information of some kind. during the ufo stop "18 minute stay" an f-18 navy jet was dispatched to intercept the ufo but as the jet approached a small ufo fighter came out of the ufo mother ship and stopped between the mother ship and the f-18 and when the f-18 pilot saw the ufo fighter the f-18 pilot turned 180 degrees and returned to the coronado navy base. there are many u tube videos of the august 29th 2018 siting in both rosarito mexico and san diego, just type in google, lights over san diego and rosearito august 29th 2018. after the ufo turned off its lights and went north, the admiral at the navy base in san diego ordered a helicopter to drop flares where the ufo was and ordered the navy press office to state that the incident was a never before conducted navy training event. this was a complete and total misrepresentation of the facts, just look at the u-tube videos and you can clearly see the navy is lying to cover up the fact that ufos have been visiting our world since the beginning of time. this is the third ufo i have seen at my ranch and was by far far the largest.