WASHINGTON (AP) — President Barack Obama’s broad effort to reduce gun violence will include proposed bans on military-style assault weapons and high-capacity ammunition magazines as well as more than a dozen executive orders aimed at circumventing congressional opposition to stricter gun control.

Obama was to announce the measures Wednesday at a White House event that will bring together law enforcement officials, lawmakers and children who wrote the president about gun violence following last month’s shooting of 20 young students and six adults at an elementary school in Newtown, Conn.

The president also invited families of the Newtown victims and survivors of the horrific shooting to the White House Wednesday.