The Swiss government said that companies can’t dodge the 39% tariff the US imposed on the country by routing exports through neighboring Liechtenstein.

Countries are questioning their American weapons purchases, in some of their biggest pushback yet to the administration’s tariffs.

Pilatus announced on Friday that it has halted deliveries of its PC-12 and PC-24 business aircraft to the U.S. This halt is in response to the 39% tariff on Swiss goods that was announced on Thursday.