<a href="https://en.wikipedia.org/wiki/World_War_II" id="mw3Q" rel="mw:WikiLink" title="World War II">World War II</a>: <a href="https://en.wikipedia.org/wiki/Nazi_Germany" id="mw3g" rel="mw:WikiLink" title="Nazi Germany">Germany</a> and <a class="mw-redirect" href="https://en.wikipedia.org/wiki/Slovak_Republic_(1939–45)" id="mw3w" rel="mw:WikiLink" title="Slovak Republic (1939–45)">Slovakia</a> <a href="https://en.wikipedia.org/wiki/Invasion_of_Poland" id="mw4A" rel="mw:WikiLink" title="Invasion of Poland">invade Poland</a>, beginning the European phase of World War II.