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World briefing — August 20, 2026

As of 2026-08-20

What changed since yesterday

World trends

War & Conflict

The global conflict landscape on 20 August shows a deepening of existing fronts rather than a clear reshuffling from 19 August. The biggest changes are in Gaza and Yemen. In Gaza, despite mediation by envoy Kushner, Israeli strikes on 18-19 August killed another 17 people (cumulative 1,273), shaking the Hamas disarmament agreement itself, and in Yemen the Houthis hit Al-Makha and Bab el-Mandeb in quick succession, escalating attacks on the Red Sea and Saudi Arabia to the point that warnings of a "reignition of full-scale war" emerged. In the Democratic Republic of the Congo, by contrast, diplomatic channels remain alive, with the DRC-Rwanda JSCM meeting on 12-13 August agreeing to tighten border monitoring, so negotiating momentum is maintained even as local clashes continue in North and South Kivu. In Ethiopia's Tigray, an attempted incursion by "state-backed" mechanised units, believed to involve Sudan and Eritrea, was confirmed for the first time, sounding a new alarm over the sustainability of the 2022 Pretoria truce. In Sudan, an AU delegation began a site visit on 17 August but the "absence of any real deterrent" was reaffirmed, and the front continues to expand into El Obeid and the Kordofan region after the fall of El Fasher. The Taiwan Strait and the Afghanistan-Pakistan border officially keep a "frozen" rating, but tension keeps building beneath the surface, in the former through the passage of a $2 billion drone budget, Taiwan-US defence cooperation, and Chinese hacking of government networks and seabed mapping, and in the latter through cross-border drone exchanges and a surge in terrorism inside Pakistan (more than 600 deaths in July alone, 3,145 incidents since the start of the year), so a possible upgrade of the rating needs to be watched. In Venezuela, the US three-stage stabilisation roadmap is under way, but political uncertainty continues, compounded by the aftermath of the June earthquake. Overall, the five existing "war" rated conflicts, Ukraine, Sudan, Yemen, the Sahel and Myanmar, continued as high-intensity wars of attrition with no sign of easing.

Geopolitics & Diplomacy

The US-Canada tariff war moved towards resolution with a dramatic three-day reprieve on 19 August, but a final deal remains incomplete, and price pressures ahead of the November US midterms are an incentive for both sides to settle. The single event of the 19 August deadline has passed, but negotiating risks are not fully resolved and remain.

The US-Iran Hormuz MOU expired on 18 August without an agreement, and Iran declared a "fully offensive" military posture as Hormuz transit volumes plunged to single digits. With Trump's refusal to extend and pressure on Oman coinciding, the risk of military clashes after 19 August has risen markedly, while informal channels with the IRGC remain open and brinkmanship diplomacy continues.

As the South Korea-US Ulchi Freedom Shield (17-27 August) began as scheduled, North Korea's threats of an "overwhelming response" rose in intensity. With tensions already high after a ballistic missile launch on 12 August, the possibility of further provocations during the exercise has emerged as the biggest variable on the Korean Peninsula.

The Turkey-Saudi Arabia-Pakistan Mecca joint defence pact (signed 7-8 August) has entered a stage of discussions on expansion to Egypt, Qatar, Kuwait and others, reshaping the Middle East security landscape. Egypt, however, has taken a cautious position over concerns of conflict with its existing peace treaty, so as of 19 August the gap between "declaratory willingness to expand" and individual countries' risk calculations is clear.

With Poland officially warning on 17 August of the possibility of a "major Russian provocation within months" and US intelligence assessing Putin's options for testing NATO (cyber, proxies, small-scale ground incursions), tensions on NATO's eastern flank have risen a notch further as of 19 August, following the 30 July incident in which a Kh-101 missile violated Polish airspace. At the same time, Russia's missile offensive against Ukraine (376 in July, a record level) is combining with the halt in US supplies of Patriot interceptors to raise the risk of a collapse of Ukraine's air defences.

Ahead of the BRICS summit in New Delhi on 12-13 September, attendance by leaders including Xi Jinping and Putin has been confirmed and preparations are under way, but the US threat of "additional tariffs on BRICS partners" and the precedent of the failed joint declaration in May are testing the bloc's internal cohesion. Domestic political variables in various countries have begun to interact with geopolitical risk in earnest since 19 August: the controversy over election integrity ahead of Israel's 27 October general election (70% of Jewish respondents concerned), the tight Brazilian presidential race (4 October) between Lula and Flavio Bolsonaro, and the US-Denmark-NATO sparring over Greenland.

Finance & Economy

Turmoil in the US Treasury market and the Treasury's firefighting: a surge in corporate bond issuance by AI data centre developers competed with Treasury issuance for funds, pushing the 30-year yield to its highest since 2007 (5.33%). Treasury Secretary Bessent announced an expanded buyback on 19 August and the 30-year calmed to the 5.2% range, but whether the 10-year breaks 5% is still watched as the market's next tipping point.

KOSPI plunges 5.8% on Asian chip stock sell-off: the US chip stock correction spread to Asia, and on 19 August the KOSPI fell 398.66 points to close at 6,471.17, with a sidecar triggered. Samsung Electronics and SK Hynix fell 7.82% and 9.75% respectively, leading the index lower, amid heavy net selling by foreign and institutional investors.

Won turns stronger, breaks ₩1,400: on 19 August the won fell 14.1 won against the dollar to ₩1,397.7, below ₩1,400 for the first time in about 11 months. Supply-demand factors including exporters' dollar sales, dollar selling linked to SK Hynix's ADR, and currency conversion for corporate tax payments combined to produce an unusual pattern in which the currency strengthened despite the stock plunge.

Expectations of a BOJ hike in September surge: the probability of a BOJ hike in September jumped in a day from around 50% to 61%. With Treasury Secretary Bessent's pressure on remarks by Governor Ueda and continued US-Japan coordinated intervention, the yen's weakening trend is being held in check at ¥159. That is a calming compared with the spike to ¥163.9 at the end of July, but the US-Japan rate gap remains a burden.

Jackson Hole preview, a test for Chair Warsh: at the Jackson Hole symposium on 27-29 August, new Fed Chair Warsh will give his first public speech since taking office. With three hawks having argued for a hike at the July FOMC, the market is watching for Chair Warsh's message on the possibility of a further hike this year. With the Bank of Korea meeting and Nvidia earnings the same week, worries about wider global volatility are also growing.

Upward pressure on oil from the Middle East persists: renewed Houthi attacks on Saudi Aramco's Jizan refinery pushed Brent to $93.60 a barrel on 19 August. Together with the passage of Russia energy sanctions legislation in the US Senate, geopolitical risk continues to weigh on energy prices and the global inflation path.

Tech & Energy

AI model competition intensifies: DeepSeek formally launched 'V4-Pro' on 13 August, touting its autonomous-task performance and extending a string of Chinese moves that followed Alibaba's Qwen3.8-Max (3 August). Cerebras also unveiled its new CS-4 computer on 19 August, emerging as a challenger to Nvidia, so latecomers in both the US and China are mounting stronger challenges.

The memory supercycle is being reshuffled: Samsung Electronics retook first place with a 39% DRAM share in the second quarter, and SK Hynix secured 10 long-term HBM4 contracts (1 August), cementing its qualitative edge. Meanwhile, China's CXMT has expanded its share to 7% on the back of its Shanghai listing and low-price push, and cracks in the three-way structure are growing.

Abrupt shift in Nvidia's China chip supply: on 18-19 August the Chinese government allowed limited imports of H200 chips (10,000 each for ByteDance and Tencent, permitted via Hong Kong). At the same time it blocked even the lower-spec RTX 5090D while nurturing domestic chipmakers such as Huawei and Cambricon, pursuing a dual strategy of securing access to AI chips while building indigenous technology.

Foundry and equipment front: TSMC's first-half profit in Arizona exceeded $1.1 billion, and it expanded its US investment to $26.5 billion (16 August). ASML's China revenue is expected to shrink from 33% to 20% as the US pushes the 'MATCH Act', while Rapidus has finished bringing in its 2nm EUV tools and is on course for mass production in 2027.

The weaponisation of resources and tariffs continues: China's rare-earth exports to Japan plunged 51% in the first half (81% in June), leaving dysprosium and terbium imports effectively at zero. The US signed a 15% tariff on Chinese polysilicon on 7 August (taking effect in early December), and CXMT stepped up its low-price DRAM push with its Shanghai listing (raising $4.6 billion), so the race to de-China supply chains and achieve self-sufficiency was intensifying on several fronts at once as of 19 August.

Hormuz energy risk and the AI power race: The resumption of the Iran-Israel war paralysed shipping through the Strait of Hormuz (12 August, 10 vessels a day), pushing Brent crude close to $90. Iran is keeping its funding lines open through discounted re-routed exports via China's Hengli Group (18 August), while the race for AI power infrastructure is accelerating at the same time, including France's nuclear-linked data centres, the UAE's Stargate and Saudi Arabia's HUMAIN.

Active conflicts

Key indicators

US Fed Funds Rate3.50~3.75% ―Held for a fifth straight time at the July FOMC (the first meeting after new Chair Warsh took office) by a 9-3 vote. Three members argued for a hike, a growing hawkish voice. Warsh is due to give his first public speech at Jackson Hole on 27-29 August, and a hike this year is being discussed.
S&P 5007,707.98 ▲The S&P 500 closed up 16.22 points (+0.2%) on 19 August (local time). An expanded long-dated Treasury buyback announced by the US Treasury eased pressure on the bond market, and strong earnings from Target, Estee Lauder and others supported the index.
Nasdaq Composite26,331.09 ▲The index closed up 41.38 points (+0.2%) on 19 August (local time). Hopes of easing Treasury yields and company-specific earnings news ended a decline that had lasted three sessions.
US 10-Year Yield~4.7% ―As of 19 August the 10-year was still in the 4.7% range, near its recent high. The 30-year was in the 5.2% range (touching 5.33% at one point intraday, the highest since 2007), slipping slightly right after the Treasury announced an expanded buyback but not fully reversing its rise.
VIX Volatility Index~16 ▼Stood at about 15.85 before the 19 August open, down from around 17 previously. A low-volatility phase has continued since the 2026 low recorded in 17 August reports, but Asia-originated risks such as the KOSPI plunge remain a potential variable.
Crude Oil (WTI / Brent)~$85.2/$93.6 ▲Brent crude rose 1.27% (+$1.18) to $93.60 a barrel on 19 August. The Houthis' renewed attack on Saudi Aramco's Jizan refinery and Hormuz risk drove the gain. WTI hovered around $85 ($85.21 on 18 August), with a more limited rise than Brent.
Gold~$4,480/oz ▲As of the morning of 19 August (8:53 ET), gold stood at $4,479.90 an ounce, up from around $4,450 previously. Safe-haven demand and a weaker dollar ahead of the release of the FOMC minutes kept prices firm.
Bitcoin~$64,700 ▲Bitcoin opened at $64,681 on 19 August and hit $64,877 at 9:25am ET, a slight rise from the previous $64,135. Reports said risk sentiment improved on news of an SEC regulatory proposal.
KRW/USD~₩1,397.7 ▼The won closed at ₩1,397.7 per dollar in the Seoul FX market on 19 August (-₩14.1 from the previous day), falling below the ₩1,400 level for the first time in about 11 months. A mix of factors was at work: dollar selling tied to SK Hynix's ADR, shipbuilders' order-related dollar sales, currency conversion demand for Samsung Electronics and SK Hynix dividends and interim corporate tax payments, and dollar weakness from the US fiscal deficit.
JPY/USD~¥159.5 ―In Asian trading on 19 August the yen was at about 159.45, little changed from 159.6 previously. The probability of a BOJ rate hike in September jumped overnight from around 50% to 61%, partly halting further yen weakness, but the rebound was limited by the US-Japan rate gap and other factors.
EUR/USD~1.165 ▲As of the evening (European time) of 19 August, EUR/USD rose to 1.1650 from 1.157 previously. Analysts said euro strength stood out as expectations of September hikes by both the ECB and the BOJ came to the fore.
KOSPI6,471.17 ▼The KOSPI plunged 398.66 points (-5.80%) on 19 August to close at 6,471.17, breaking below 6,500. A sell-side sidecar was triggered early in the session, and large-cap chipmakers such as Samsung Electronics (-7.82%) and SK Hynix (-9.75%) led the fall, following a pullback in US chip stocks. Foreigners and institutions net sold ₩4.0242 trillion and ₩1.7926 trillion respectively.

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