示威现场部署了强大的警力，以确保公共秩序。

There was a strong police ___presence at the demonstration to ensure public order.

农村地区缺乏明显的警力部署，加剧了居民的不安全感。

The lack of a visible police ___presence in rural areas contributes to a sense of insecurity among residents.

沿边境增加的军事存在旨在威慑任何潜在的入侵。

The increased military ___presence along the border was intended to deter any potential incursions.