<prompt> Qedela le nkulumo elandelayo: Eminyakeni yokuqala yaseMelika ingenela iMpi Yezwe II, amasosha ase-U.S. amisa imishini ye-radar yokuxwayisa kusenesikhathi ogwini ngenxa yokukhathazeka ngokuzivikela kwezwe ekuhlaselweni ngamabhomu esitha. Ngemva kokuhlaselwa kwePearl Harbor ngokungalindelekile, izikhulu zazikhathazekile ngokuthi isitha sasingase sihlasele  <response>: Ikakhulukazi iPanama Canal ngenxa yokubaluleka kwayo ekuxhumaniseni imigwaqo yezempi neyokuthutha ye-Atlantic nePacific. Njengoba umnyango osentshonalanga oya eCanal Zone wawungenayo indawo eseduze eyayingasetshenziswa njengezindawo zemisebe, umnyango wawuvikelwe imikhumbi eyayiphethe imisebe. Ngo-1942, imicabango yashintsha isuka ekuvikeleni emoyeni okuzenzakalelayo yaya ekuhlaseleni kwamabutho ahlangene, futhi abaholi bezempi beMpi Yezindiza bagcizelela isidingo sezindiza ezihambayo ezihamba ibanga elide phakathi nezimpi zabo ePacific. Nokho, imishini ye-radar yaseMelika ngaleso sikhathi yayinesilinganiso esiphezulu semvamisa yama-megacycle angu-200, okwakungayenzi nje kuphela ibe sengozini yokuhlaselwa ngokuzumayo yizindiza ezindiza kancane kodwa futhi yayinkulu kakhulu futhi kunzima ukuyinciphisa. 