I can’t find my link to it now but early on there was an article about a special team from Germany that was moved to Sigonella ready and raring to go. As Travis McGee posted, they have teams who practice regularly for hostage/embassy rescue missions and they’ve been doing that for decades.
That was under the Africom commander, Carter F Ham, who has been relieved of duty (though we are unsure of the exact details of his "early" removal). Africom (U.S Africa Command) is headquartered in Stuttgart.