to jeopardize the defense / to compromise the defense / to put the defense at risk
1. to endanger or compromise a defensive position, strategy, or structure; to take actions that weaken protective measures
The general's reckless decision to move troops threatened to jeopardize the defense.
A decisão imprudente do general em mover as tropas ameaçava colocar em risco a defesa.
2. in legal or institutional contexts, to undermine protective mechanisms or safeguards
Releasing confidential information could jeopardize the defense.
Divulgar informações confidenciais pode colocar em risco a defesa.