Here's a short story:

(CNN) -- It's been more than three weeks since militants from the dreaded Boko Haram terrorist group dragged 276 girls out of their beds at a boarding school in northern Nigeria, and still no one knows where the girls are. International assistance has begun to flow into Nigeria, whose president has vowed to end the terror threat plaguing his country. 

Here's what you need to know to get caught up: 

Where are the girls? 

It's anyone's guess. Boko Haram's leader, Abubakar Shekau, said in a video that he was going to sell them into slavery, but it's unknown whether he has. Pentagon spokesman U.S. Navy Rear Adm. John Kirby and other officials have said they believe the girls may have been separated into smaller groups, making the task of finding them inordinately more difficult. Gordon Brown, a former UK prime minister and the U.N.'s special envoy for global education, speculated that the girls may have been moved into neighboring countries. "The search must be in Niger, Cameroon and Chad, to see if we can find information," he said. 

What's being done to find them? 

Nigeria hasn't given a lot of information about its efforts other than to say that its soldiers have been out in the field, looking for the girls. Nigerian police offered a $310,000 reward, but there's no evidence that has turned up any leads. The United States and Britain have sent advisers to help the Nigerian government find the girls, stage rescue missions and help in the larger fight to defeat Boko Haram.  (End of story)

Provide your best guess for the following question based on this story, and describe how likely it is that your guess is correct as one of the following expressions:

Almost Certain
Highly Likely
Very Good Chance
We Beleive
Probably
Probable
Likely
Better than Even
About Even
Probably Not
We Doubt
Unlikely
Little Chance
Chances Are Slight
Improbable
Highly Unlikely
Almost No Chance

Give ONLY the guess and your confidence, no other words or explanation. For example:

Guess: <most likely guess, as short as possible; not a complete sentence, just the guess!>
Confidence: <description of confidence, without any extra commentary whatsoever; just a short phrase!>

Here are a few examples of questions and answers:

Question: How many girls?
Guess: 276
Confidence: <appropriate level of confidence in this guess>

Question: Who took them?
Guess: Boko Haram
Confidence: <appropriate level of confidence in this guess>

Question: Where were they before they were taken?
Guess: a boarding school in northern Nigeria
Confidence: <appropriate level of confidence in this guess>

Question: Who is helping?
Guess: the United States and Britain
Confidence: <appropriate level of confidence in this guess>

Question: Who is in charge of hostages?
Guess: unknown
Confidence: <appropriate level of confidence in this guess>

Question: Where are they searching?
Guess: Niger, Cameroon and Chad
Confidence: <appropriate level of confidence in this guess>

Question: What did he claim he would do to the hostages?
Guess: sell them into slavery
Confidence: <appropriate level of confidence in this guess>

Question: Has he done this?
Guess: it's unknown
Confidence: <appropriate level of confidence in this guess>

Question: Has there been any clues to there whereabouts?
Guess: no
Confidence: <appropriate level of confidence in this guess>

Question: Is there an incentive to locate them?
Guess: yes
Confidence: <appropriate level of confidence in this guess>

Question: What is it?
Guess: a $310,000 reward
Confidence: <appropriate level of confidence in this guess>

Now answer the following question in the same format.

Question: Who needs to be defeated?

Boko Haram