Read the following premise and answer if the hypothesis is true.
The Combat Box was a tactical formation used by heavy (strategic) bombers of the U.S. Army Air Forces during World War II. The combat box was also referred to as a "staggered formation". Its defensive purpose was in massing the firepower of the bombers' guns, while offensively it concentrated the release of bombs on a target.
Hypothesis: The Combat Box had been in planning for years before World War II.. Is the answer "Yes", "No", or "It's impossible to say"? Respond with only the answer and no additional text.
It's impossible to say
It's impossible to say. The hypothesis does not provide enough information to determine if the Combat Box was in planning for years before World War II