Why does F.C. Hapoel Tel Aviv play in UEFA Europa League since
Israel is not in
Israel is not in Europe but is a member of UEFA for political reasons (From Wikipedia):
Israel competed in the Asian Football Confederation (AFC) between 1954
and 1974. Due to the Arab–Israeli conflict, several Muslim states
refused to compete against Israel. The political situation culminated
in Israel winning the 1958 World Cup qualifying stage for Asia and
Africa without playing a single game, forcing FIFA to schedule a
playoff between Israel and Wales to ensure the team did not qualify
without playing at least one game (which Wales won).
In 1974, Israel was excluded from AFC competitions, as a result of a proposal by Kuwait which was adopted by a vote of 17 to 13 with 6 abstentions.
In 1991, Israeli clubs began participating in European club
competitions, and Israel returned to the European leg of World Cup
qualifying in 1992. In 1994, Israel received full UEFA membership, 20 years after it had left Asia.