Military service members have seen this before when Lt Gen Stenner wrote nearly the identical letter in his tenure 6 years ago.
USERRA is not abrogated by directives.
Employers cannot compel an employee to comply contrary to USERRA.
Employers can ask for, but not demand, documentation outside USERRA requirements. We don't have to provide it.
As always, recommend a positive diplomatic relationship with an employer.
Do educate yourselves on USERRA. Contact your union military committee or the DOL VETS office if believe your rights under USERRA are violated.
I think these Generals display a distrust of service members.
http://www.servicemembers-lawcenter....iew_Index.html