Yanukovych wins the presidential election. Parliament in Kyiv passes a law cementing Ukraine's neutrality.

Following the Maidan Revolution, parliament in Kyiv resolves to aspire to NATO membership.

A constitutional amendment codifies Ukraine's goal of joining NATO.

Following the Russian invasion, President Zelenskyy applies for an accelerated application process to the alliance.

At the NATO summit in Vilnius, the alliance reaffirms its intention to bring Ukraine into the fold, but declines to issue a formal invitation to join.