联合国维和部队被派往该地区维持和平。

The United Nations peacekeeping ___forces were sent to the region to maintain peace.

飓风的强大力量摧毁了整个小镇。

The powerful ___forces of the hurricane destroyed the entire town.

市场竞争的力量促使公司不断创新。

The ___forces of market competition drive companies to innovate constantly.