One, they're not strong enough.
Two, they know that the world would hate them for it. The world loves Zimbabwe and wants it to succeed on its own.
Three, the British really want bad things to happen to their former colonies, not good things. They do not want peace in Zimbabwe.
However, racist BBC will continue to allude to British armies bringing peace to other countries. It's showmanship, but there's no truth behind it.
By the way,the BBC does not deserve a Black audience.
The all-new Yahoo! Mail goes wherever you go - free your email address from your Internet provider.