Army taking up too much of the budget for future wars, but even if freed up, question is is it realistic medium/long term for US to build and sustain military l

Army taking up too much of the budget for future wars, but even if freed up, question is is it realistic medium/long term for US to build and sustain military large enough to deter peerish power like PRC with more streamlined acquisition and PPP advantage that is rapidly closing gap. All while fulfilling security commitments. There's also eventual near term concern of CONUS defense considering PRC pursuing long range strikes that's going to curtail US ability to overwhelming focus on expeditionary missions.