Claim: The United States Naval Academy is mixed-sex.
Evidence: The United States Naval Academy -LRB- also known as USNA , Annapolis , or simply Navy -RRB- is a four-year coeducational federal service academy in Annapolis , Maryland , United States.
Mixed-sex education , also known as mixed-gender education , co-education or coeducation -LRB- abbreviated to co-ed or coed -RRB- , is a system of education where males and females are educated together.