However, coroutines are cooperatively multitasked, whereas threads are typically preemptively multitasked. This provoked Niklot to preemptively invade Saxon-held Wagria. However, Roddenberry himself preemptively rebuked such an attitude. It is even reasonable to preemptively attack one's neighbour. Preemptively attacking enemies also grants the player an advantage during the battle. MultiTOS was developed to allow "TOS" to preemptively multitask. Windows 95 included support for 255-character mixed-case long filenames and preemptively multitasked protected-mode 32-bit applications. Thus, the Romans preemptively invaded the Po region in 225 BC. Abu Muslim's confidante Abu Jahm reported what was happening, and the Abbasids acted preemptively. He Jin found out, and preemptively declared Liu Bian the new emperor. The league preemptively sued the owners on June 17. It is a war that preemptively 'breaks the peace'. That day, Ehrler had preemptively ordered 9. NASA chose instead to preemptively de-orbit Compton on June 4, 2000. Input validation, which preemptively filters exceptional cases, is also an approach.