Member states of NATO members and three former Yugoslav republics) from 12 March 1999 to 5 June 2017. NATO has added new members seven times since its founding in 1949, and since 2017 NATO has had 29 members. Twelve countries were part of the founding of NATO: Belgium, Canada, Denmark, France, Iceland, Italy, Luxembourg, the Netherlands, Norway, Portugal, the United Kingdom, and the United States. In 1952, Greece and Turkey became members of the Alliance, joined later by West Germany (in 1955) and Spain (in 1982). In 1990, with the reunification of Germany, NATO grew to include the former country of East Germany. Between
President of the Senate of Puerto Rico The president is typically elected during the Senate's inaugural session. When absent, the president is substituted by the President pro tempore. Its counterpart in the House is the Speaker. The current president is Thomas Rivera Schatz, senator at-large from the New Progressive Party. The president traces its history back to more than years ago when the Jones–Shafroth Act formally established the post on March 2, 1917. Said act was eventually superseded by another law, and the post was eventually established by the Constitution of Puerto Rico, specifically Article III, which establishes that, "The Senate shall elect a President [...] from