sabotage

sabotaasi

sabotoida A deliberate action aimed at weakening an enemy through subversion, obstruction, disruption, and/or destruction.
puhekieltä An act or acts with intent to injure, interfere with, or obstruct the national defense of a country by willfully injuring or destroying, or attempting to injure or destroy, any national defense or war materiel, premises, or utilities, to include human and natural resourcesJP 1-02 Department of Defense Dictionary of Military and Associated Terms..
to deliberately destroy or damage something in order to prevent it from being successful

The railway line had been sabotaged by enemy commandos

Five minutes later, Southampton tried to mount their first attack, but Wickham sabotaged the move by tripping the rampaging Nathaniel Clyne, prompting the referee, Andre Marriner, to issue a yellow card. That was a lone blemish on an otherwise tidy start by Poyet’s team – until, that is, the 12th minute, when Vergini produced a candidate for the most ludicrous own goal in Premier League history.