China holds military exercises around Taiwan in "stern warning against separatists" / China calls military drills near Taiwan a 'punishment' / Taiwan's marine corps to rebuild brigade with modern coastal mission / Taiwanese military focuses on PLA cognitive warfare threat in revamped TV show / Taiwan's military uses Taipei university for urban warfare training, sparking outcry / Mainland China sanctions academy that urges Taiwanese public to prepare for war / China employs 125 military aircraft in exercises aimed at Taiwan in single-day record, Taiwan's government says / Taiwanese military says 25 Chinese aircraft, 11 ships approach island / Taiwan's shrinking active-duty troop numbers a 'worry' as PLA threats intensify / Taiwan's president urges army to shed nationalist legacy to meet China threat