From the Army Times:

Like their counterparts in the House, senators have formed a bipartisan military family caucus to focus on issues facing military families, and improve programs and services for them.

The group of 20 senators is led by co-chairs Barbara Boxer, D-Calif., and Richard Burr, R-N.C.

[...]

“We recognize that when a service member puts on a uniform, the entire family sacrifices for our country,” Boxer said.