Geopolitics Daily Brief — August 5, 2026: Taiwan drills, U.S. missile drawdown and Red Sea risk

What matters this morning

1. Samsung and SK Hynix test Chinese chip tools as a hedge against U.S. controls

• Samsung Electronics and SK Hynix are evaluating etching equipment from China's Advanced Micro-Fabrication Equipment (AMEC) for possible use at their Chinese factories, three people familiar with the matter told Reuters. 2
• The testing began about two years ago as the companies faced uncertainty over continued U.S. tool shipments; Reuters says Washington revoked their validated-end-user status in 2025 and granted an annual 2026 licence instead. 2
• The report is not a deployment decision: Samsung said it had not tested AMEC equipment or considered doing so, while SK Hynix declined to comment. Reuters says Chinese tools can cost 20% to 30% less than comparable foreign equipment, but qualification, service, intellectual-property and political hurdles remain. 2

2. Russian strikes kill 14 around Kyiv and damage warehouses

• Russian strikes around Kyiv killed 14 people, injured 27 and damaged warehouses overnight, Ukrainian emergency-service officials said; the attack began after midnight and hit seven sites, according to the Kyiv military administration. 4
• Ukraine's air force said Russia fired four Zircon and 24 Iskander-M missiles plus 115 drones; it said 98 drones were destroyed or suppressed but no missiles were intercepted. Reuters said it could not independently verify all the reports. 4
• Kyiv is seeking more PAC-3 Patriot interceptors, and four sources told Reuters that Washington is still discussing allowing Ukraine to produce Patriot missiles, despite President Donald Trump's doubts about such a deal. 4

3. Taiwan opens a tougher Han Kuang exercise

• Taiwan began its 10-day Han Kuang exercise on Wednesday, with fighter dispersals and emergency naval deployments ordered from an underground command centre; the drill ends on August 14 and will mobilise more than 20,000 reservists. 1
• The exercise will use a U.S.-style "backbrief" for the first time, asking junior officers to restate orders, and will deliberately slow mobile internet to test civilian communications when bandwidth is scarce. 1
• Taiwan will simulate moving a major arsenal, mobilising civilian factories and escorting vessels off its Pacific coast, after identifying command centres, ports, logistics and defence-industry sites as early attack targets. China's defence ministry did not respond to Reuters' request for comment. 1

4. Houthis claim a missile attack on a Saudi oil tanker

• Yemen's Iran-aligned Houthis said they launched a missile attack on a Saudi oil tanker off Yanbu, the Saudi Red Sea port city. 5
• Houthi military spokesperson Yahya Saree did not say when the attack took place, and the statement did not provide evidence of a hit or identify the vessel. 5
• Saudi officials had not immediately responded to Reuters' request for comment, so the report establishes a claim rather than a confirmed tanker outage or route closure. 5

5. U.S. long-range missile stocks are under pressure after five months of war

• The U.S. Army has used much of its global stockpile of ATACMS and Precision Strike Missiles during the five-month war with Iran; two sources familiar with the data told Reuters it had used "virtually all" of those weapons. 3
• The missiles cost more than $1 million each, and Reuters says ATACMS have supported Ukrainian strikes inside Russia while the newer PrSM is being developed to replace them; sources did not disclose how many remain. 3
• Reuters also reported internal concern over Patriot and THAAD stocks, but it did not see the underlying figures; a CSIS estimate put Patriot expenditure at about 65% and THAAD stockpiles at least 38% below their pre-war level. A fourth source said the United States can resupply from global stores, while the White House said it has more munitions than it needs. 3

Watchpoints

• Whether Taiwan's command, communications and factory-relocation tests produce new procurement or continuity measures before the exercise ends on August 14. 1
• Whether Samsung or SK Hynix confirms, expands or rejects Chinese equipment testing, and whether Washington changes the 2026 licence framework for their China plants. 2
• Whether the Kyiv strike produces a new Patriot or PAC-3 supply commitment and whether the reported Patriot-production talks move forward. 4
• Whether Saudi authorities confirm damage or disruption from the Houthi tanker claim; until then, treat it as a security signal rather than a measured supply loss. 5
• Whether U.S. missile-production agreements translate into higher deliveries, not just new capacity announcements, as the reported stockpile pressure touches Iran, Ukraine and wider deterrence planning. 3