The US military judge overseeing the trial of soldier Bradley Manning, who leaked a massive trove of secret US files, will deliver her verdict on Tuesday, her office said.
Judge Denise Lind plans to issue her judgement at 1700 GMT. Manning could spend the rest of his life behind bars if convicted of the most serious charges against him.
Manning was serving as an intelligence analyst in Iraq when he sent anti-secrecy website WikiLeaks a vast cache of diplomatic cables and classified military reports from Iraq and Afghanistan.
The phase of Manning's court martial dedicated to determining his sentence could begin as early as Wednesday.