Returning service-members are to be reemployed in the job that they would have attained had they not been absent for military service, this is known as the "escalator principle" (See FISHGOLD v. SULLIVAN DRYDOCK & REPAIR CORP., 328 U.S. 275 (1946) ), with the same seniority, status and pay, as well as other rights and benefits determined by seniority.
The "escalator principle" is a legal concept that mandates returning service members be placed back into their pre-military jobs with the same seniority, rank, pay, benefits, and rights as before their absence. This principle was established in the case of FISHGOLD v. SULLIVAN DRYDOCK & REPAIR CORP., 328 U.S. 275 (1946).