Bans on exported goods can apply to specific products, individual companies or to entire sectors of the economy. Currently, the U.S. and EU are making efforts to curb the export of technology to Russia. Blocking the supply chain would severely impact the Russian economy, especially the production of computers and medical equipment. The Russian population would also be directly affected. Such bans could also have drastic consequences on spare aircraft parts. In this case, planes from Western manufacturers would have to be grounded. At the start of the Crimean crisis, Russia used similar sanctions to ensure that Russian goods could no longer be sold to certain countries.