Core Viewpoint - Barclays strategists believe that a severe deterioration in relations between the EU and the US, potentially leading to the US's exit from NATO, would pose a greater issue for the euro than for the dollar [1][5]. Group 1: Impact on Euro and Dollar - The potential US exit from NATO is expected to create a negative premium for the euro [2][6]. - The strategists downplay the notion that European investors holding US assets serve as a significant counterbalance to US geopolitical power [3][7]. Group 2: Capital Flows and Investor Behavior - Despite an increase in exposure to US assets since the early 2010s, the eurozone has also received substantial capital inflows from other regions [3][7]. - In a scenario where EU-US relations have completely broken down, it cannot be assumed that Asian investors will maintain their preference for European bonds [3][7]. Group 3: Market Reactions and Currency Sensitivity - There has been no significant "sell-off" of US assets by large holders in response to US tariffs over the past year [4][8]. - The dollar is currently vulnerable to the latest threats from Trump, which may lead to a reversal of the dollar long positions established earlier this year [4][8]. - The Swiss franc is considered the best tool for hedging against internal NATO disputes, while a rising VIX index could negatively impact risk-sensitive currencies such as the Swedish krona, Australian dollar, Latin American currencies, and South African rand [4][8].