We are planning to attend the meeting tomorrow.

I prepared emergency food and water to prepare for an earthquake.

Have you heard the news that aliens came to Earth?

In order to succeed in this project, it is necessary to strengthen teamwork.

We hold meetings every week to strengthen teamwork.

We strengthened our defense system in preparation for the alien invasion.

Aliens invaded the Earth.

He is doing his best for the defense of the country.

We should do our best to defend our country.

This system is very efficient.