MKs Nachman Shai (Labor) and Ronen Hoffman (Yesh Atid) lobbied members of the Parliamentary Assembly of the Council of Europe (PACE) on Monday to help Israel bring home the three teens kidnapped earlier this month.
"Terrorism struck Europe like the Middle East and we should all join hands in the effort to exterminate it," the Knesset delegation wrote in a message to PACE.
The MKs pointed out that Hamas was already declared a terrorist organization in Europe.
"Efforts to promote a peace treaty between Israel and the Palestinian Authority should be separate from Hamas, which uses terrorism and is trying to undermine attempts at an agreement," they added.
Israel has observer status in PACE, which has 48 member countries with 800 million residents.
Over the next two days, Shai and Hoffman plan to continue their efforts to press member countries to help find and release the captives.