<prompt> Nyorai kupfuurira kweiyi ndima - Mukati meMatambudziko, Provisional IRA yakashandisa zvikuru IEDs mumushandirapamwe wavo wa1969-1997. Vakashandisa zvimbambaira zvinoparadza dzimba dzevarwi uye zvimbambaira zvinoshandiswa kure. Mitezo yeIRA yakagadzira ndokurwisa-kugadzira zvombo namano. Mabhomba eIRA akava akaomesesa zvikuru, aiva nemidziyo yokudzivisa kubatwa nayo yakadai sechinhu chinoshandura kurerekera kwemekiyuri kana kuti microswitches. Midziyo iyi yaizoputika bhomba racho kudai raizofambiswa munzira ipi neipi. Kazhinji, chishandiso chekuchengetedza chishandiso chaishandiswa yaive wachi Memopark timer, iyo yakashongedza bhomba kusvika pamaminitsi makumi matanhatu mushure mekunge yaiswa nekuzadza dunhu remagetsi rinopa simba kuchinhu chinorwisa kubata. Zvichienderana nechinangwa chakasarudzika semuenzaniso, boobytraped briefcase kana mota bhomba yakazvimiririra yemagetsi yakapa simba kune yakajairika timer yakatarwa kwenguva inotarisirwa nguva, semuenzaniso maminetsi makumi mana. Zvisinei, zvimwe zvinononoka zvemagetsi zvakagadzirwa navanamazvikokota veIRA zvaigona kugadziridzwa kuti zvinyatsoita kuti bhomba riputike mavhiki akati pashure pokunge ravigwa, izvo zvakaitika pakurwiswa kwebhomba repahotera yeBrighton  <response>: ye1984. Pakutanga, mabhomba aiparadzwa nechinhu chinoridza nguva kana kuti netambo yomurayiro. Gare gare, mabhomba aigona kuputika nokudzorwa neredhiyo. Pakutanga, maservo akareruka anobva mundege dzinodzorwa neredhiyo aishandiswa kuvhara dunhu remagetsi uye kupa simba kune chinoputika. Pashure pokunge vaBritain vagadzira zvinovhiringidza, nyanzvi dzeIRA dzakatanga kugadzira michina yaida nhevedzano yemakodhi eredhiyo anobaya kuti iite kuti ishande uye iite kuti iputike. Aya akanga akaoma kurovera. 