2018 in Poland

28 January - both chambers of the Polish parliament (Sejm and Senate) adopted an Amendment to the Act on the Institute of National Remembrance criminalizing the attribution of Nazi war crimes and condemning use of the expression "Polish death camp" (see "Polish death camp" controversy).^[5]^[6]^[7]

11 March - A new Polish law banning almost all trade on Sundays has taken effect, with large supermarkets and most other retailers closed for the first time since liberal shopping laws were introduced in the 1990s. The Law and Justice party, whose lawmakers passed the legislation with the support of Prime Minister Mateusz Morawiecki.^[8]^[9]^[10]^[11]
28 March – Poland signs a $4.75 billion deal with the U.S. to buy the Patriot missile defense system, its largest arms purchase.^[12]^[13]

27 May – Parents and disabled children end a 40-day parliament protest over state assisted payments, securing a smaller-than-requested increase in disability payments.^[14]
28 May – Kremlin warns that United States put military pressure in European Union security at risk. Dmitry Peskov said in statement, "When we see the gradual expansion of NATO military structures towards our borders..., this of course in no way creates security and stability on the continent".^[15]

4 July – Supreme Court President Małgorzata Gersdorf addresses supporters in Warsaw and refuses to step down, despite a new law reducing the retirement age for Supreme Court judges, forcing 27 judges into retirement.^[16]
26 July – Thousands protest across Poland after President Duda signs a law allowing the government to choose the next Supreme Court chief, with clashes reported in Warsaw.^[17]

11 November – A 100th Independence Day march in Warsaw draws 200,000, including far-right groups; President Duda attends after a last-minute government-organizer agreement.^[18]
23 November – Poland's opposition Civic Platform file a no-confidence motion against the ruling Law and Justice party following corruption allegations at the country's financial regulator. Marek Chrzanowski resigns over the scandal.^[19]
25 November – Roksana Węgiel wins the Junior Eurovision Song Contest 2018 for Poland.

Incumbents