They threatened to take up arms against the government if their demands were not met.

他们威胁说，如果要求得不到满足就拿起武器对抗政府。

Now that you are able to take up arms and defend your motherland.

你现在能够披坚执锐，保卫祖国了。

Now that you are able to take up arms and defend your motherland, we are all proud of you.

你现在能够披坚执锐，保卫祖国，我们都为你感到自豪。

If the enemies dare to come, take up arms and fight.

如果敌人敢来，拿起武器，战斗。

The country would certainly take up arms in its defence.

这个国家肯定要武装起来进行自卫。