in wartime
during wartime

She was allowed to change back to her human form during wartime, for half an hour every day.

During wartime in 1943, the population of the University became majority women.

Men were also responsible for the defense of the village and would fight during wartime.

"Of course, there is a higher demand for these products during wartime."

It list the names of those people who were killed or missing in action during wartime.

The show is about romance during wartime, for lack of a better term.

But that was not a luxury they could afford during wartime.

Claims of presidential power during wartime have particularly large consequences today.

It also ruled that Britain would not open trade with any nation during wartime.

The idea of vanity during wartime makes many people uneasy.