the 8th army was commanded by walton walker. walton walker was a corps commander in patton's army. he's a really experienced combat soldier and a very fine officer. macarthur however came up with a concept to crush the north koreans. his idea was that walker in the pusan perimeter would launch an attack out meanwhile he would launch an amphibious landing at inchon the port area for seoul. the object was to seize seoul and cutoff the north koreans. the problem was multiple. inchon has between 29 and 35 -- 36 foot tide differentials. so, you know -- higher than this ceiling at high tide, below our floor at low tide. that's a huge tidal difference and that makes a dramatic difference when you're trying to land. secondly, you've got mud flats at low tide that extent 6,000 yards. 6,000 yards. so they're going to have -- that's four miles and of course landing craft and ships and tanks are going to get stuck in the mud so you're not going to be able to land at low tide. there are numerous islands en route that you'll have to occupy. as you advance, the waterways are really rough in the w