There are several synonyms for the phrase "pressed into service." One common alternative is "drafted," which emphasizes the idea of being forcibly conscripted or recruited. "Enlisted" is another term with military connotations, though it can also apply to non-military situations where someone is called upon to perform a task. "Mobilized" is a similar term, often used in emergency situations where people are rallied to respond to a crisis. "Utilized" and "engaged" are more neutral terms that simply suggest someone is being put to work or called upon to contribute in some way. Regardless of which term you choose, it's clear that being "pressed into service" often implies a certain degree of reluctance or obligation.