Meaning of 強力な in Japanese

They made more powerful arms.

He defeated his powerful antagonists.

Japan has economically become a powerful nation.

Germany then had a powerful army.

When two powerful forces with opposite ideals come face to face, it's time for a showdown.

Our team competed with a powerful rival.

Europe is a continent of energetic peoples.

Matt is a powerful acquisition for our team.

It came in a handsome wooden box and contained a rack for test tubes, glass bottles of powerful powders, a little packet of sensitive paper (litmus, I think), a glass rod, the manual and suitably exciting poison labels.