"Escalate"? Allowing Ukraine to use the weapons it has to strike back at an aggressor in order to mitigate or reduce said aggressors ability to continue attacking is ... "escalation"? I don't think so.
If anything artificial limits have been placed on Ukraine that are not placed on other nations (or in some cases proscribed terrorist organisations) purchasing or being "gifted" weapons. Whether those weapons are from the U.S., UK, France, Germany, Russia, RoK, whoever.
If anything artificial limits have been placed on Ukraine that are not placed on other nations (or in some cases proscribed terrorist organisations) purchasing or being "gifted" weapons. Whether those weapons are from the U.S., UK, France, Germany, Russia, RoK, whoever.