An insurer's obligation to provide a legal defense when a claim or lawsuit potentially falls within policy coverage.

Each part matters. "Obligation" means it is not optional just because the insurer doubts the case, dislikes the facts, or thinks the insured will probably lose. "Provide a legal defense" usually means hiring counsel and paying defense costs, not merely giving advice. "Potentially falls within policy coverage" is where bad advice often starts: many people assume the insurer only has to defend when coverage is certain. That is wrong. The duty to defend is usually broader than the duty to indemnify, which is the duty to pay a settlement or judgment.

In practice, the fight often turns on the complaint, the policy language, and any known facts suggesting possible coverage. If a driver, business, or property owner gets sued after a crash or injury, a refusal to defend can leave them paying attorneys out of pocket while the liability case moves fast. Around Nebraska, that can matter in cases tied to a wreck on US-20 or a serious injury treated at Nebraska Medicine, where damages can escalate quickly.

For an injury claim, this duty affects who controls the defense, whether settlement happens early, and whether the insurer may face a bad faith claim for wrongly denying coverage or defending under a reservation of rights. In Nebraska, the Nebraska Supreme Court has repeatedly treated the duty to defend as broader than the duty to indemnify, based largely on the policy and the allegations in the underlying suit.