The rebels had few firearms; they were mostly armed with bolo knives and bamboo spears. The lack of guns has been proposed as a possible reason why the Manila attack allegedly never succeeded. Also, the Katipunan leaders from Cavite had earlier expressed reservations about starting an uprising due to their lack of firearms and preparation. As a result, they did not send troops to Manila, but instead attacked garrisons in their own locales. Some historians have argued that the Katipunan defeat in the Manila area was (partly) the fault of the Cavite rebels due to their absence, as their presence would have proved crucial. In their memoirs, Cavite rebel leaders justified their absence in Manila by claiming Bonifacio failed to execute pre-arranged signals to begin the uprising, such as setting balloons loose and extinguishing the lights at the Luneta park. However, these claims have been dismissed as "historical mythology"; as reasoned by historians, if they were really waiting for signals before marching on Manila, they would have arrived "too late for the fray". Bonifacio's command for a simultaneous attack is interpreted as evidence that such signals were never arranged. Other factors for the Katipunan defeat include the capture of Bonifacio's battle plans by Spanish intelligence. The Spanish concentrated their forces in the Manila area while pulling out troops in other provinces (which proved beneficial for rebels in other areas, particularly Cavite). The authorities also transferred a regiment of 500 native troops to Marawi, Mindanao, where the soldiers later rebelled.