PLA Surges to 13 Sorties May 18-19 — 10 Cross Median Line Into N/SW/Eastern ADIZ; 5 PLAN Vessels + 2 Official Ships; Post-Summit Pressure Escalates Above May 18 Baseline

Taiwan's Ministry of National Defense detected 13 PLA aircraft sorties in the 24-hour window ending at 06:00 local time (UTC+8) on May 19, 2026 — a significant escalation from the 7 sorties recorded in the preceding May 18 window. Of the 13 sorties, 10 crossed the Taiwan Strait median line and entered Taiwan's northern, southwestern, and eastern Air Defense Identification Zones simultaneously — marking the highest single-day sortie count of the post-Trump-Xi-summit period and the largest multi-sector crossing since May 7 (22 sorties, 18 crossing). The 5 PLAN vessels and 2 official ships operating around Taiwan reflect a slight increase in official ship presence compared to the May 18 1-official-ship count, consistent with the dual military-civilian maritime pressure pattern. The multi-sector geometry — northern + southwestern + eastern ADIZ simultaneously — mirrors the major surge patterns seen on May 7 (18 crossings), May 2 (15 crossings, 29 sorties record), and April 26 (18 crossings, 28 sorties). The surge comes 12 days before the HIMARS payment deadline (May 31) and follows the Trump-Xi summit (May 14-15) which produced no binding commitments on Taiwan's security. The expanded May 2026 sortie sequence now reads: 4 (May 1) → 29 record (May 2) → 1 (May 3) → 2 (May 4) → 1 (May 5) → 0 (May 6) → 22 (May 7) → 12 (May 8) → 8 (May 9) → 12 (May 10) → 7 (May 11) → 9 (May 12) → 2 (May 13) → 3 (May 14) → 15 (May 15) → 6 (May 17) → 7 (May 18) → 13 (May 19). No new PLA named exercise was announced; the elevated sortie count represents continued gray-zone pressure operations rather than a declared drill. Taiwan's ROC Armed Forces deployed combat air patrol (CAP) aircraft, naval vessels, and coastal missile systems in response.