Lt. Patricia Butler demonstrates a technique to deliver a baby during a lesson on obstetric emergency procedures to nurses and midwives from Majuro Hospital during a Pacific Partnership 2013 nursing conference. Working at the invitation of each host nation, U.S. Navy forces are joined by non-governmental organizations and regional partners that include Australia, Canada, Colombia, France, Japan, Malaysia, Singapore, South Korea and New Zealand to improve maritime security, conduct humanitarian assistance and strengthen disaster-response preparedness.