Smartphones are a good chunk of ICs capacity this days, while Samsung alone sells millions of smartphones with complicated SOCs, the military probably need 10000 CPUs units ( to build 500 drones).
Modern radars of AESA architecture require very large number of ICs for signal amplification, filtering, AC/DC conversion, digital processing. Then there's precision guided munition, cruise missiles, anti-air missiles, etc with similar requirements. I've seen Russian AESA radar designs with American made Altera/Xilinx FPGA chips and Texas Instrument chips among others. This is the sort of technology that not even China is capable of replacing at the moment, at least not on the state-of-the-art level.