Along with the tremendous strength and patriotism they have, military spouses endure frequent changes and unexpected developments in their lives. They prepare for many unknowns during military life, often unable to make a plan for more than a few days in advance. They hold down the home front during deployments, training, and many other circumstances while their husband or wife serves their country. Depending on the length of service, they may move many times and often all over the world. Military spouses spend many months apart during stressful deployments with limited communication or training.
Source: https://www.nationaldaycalendar.com/national-day/national-military-spouse-appreciation-day-friday-before-mothers-day