The challenges are tremendous: those speaking of "irreversible choice" should mind Ukraine's horrendous track record of honoring agreements. After the Maidan, most Western officials expect that Kyiv will want to implement the agreement. But based on lessons learned from the Orange Revolution, it would be wise not only to trust but verify. Ukraine is united—but so far against Russia. Internal politics remain more fragmented than ever. An attack on the office of the Russian newspaper Vesti in Kyiv in addition to shoot outs at Maidan show the actual level of resistance. As Peter Pomerantsev wrote, Maidan sharpened the conflict of utopian visions. A fresh public opinion poll underpins how fragile the political situation is: the Radical Party of the populist Oleh Liashko, (in)famous for interrogating separatists captives, would win early parliamentary elections. Maidan 3.0 can’t be excluded.

But Ukraine is capable of surprise as so many times in the past seven months. Who believed three months ago that the country could muster a legitimate presidential election? It is still the (lack of) legitimacy of the care taker government and the current parliament that keep politics fragmented. Early elections are not an easy call, though: populists can easily win and Ukrainian lawmakers "would rather fight in the Eastern front than vote to shorten their mandate" as a popular saying in Kyiv goes.

Although citizens’ participation has been dramatically increased, its focus is on resistance and fighting—much less to convince and build. Successful implementation of the EU association agenda requires much of the latter. The West deserved credit for rapidly mobilizing financial assistance, the EU set up a support group and organized a donor conference. European mechanisms, however, were designed with the assumptions of a different economic and political situation as well as with the belief that (free) trade will (still) do a miracle. But in the rapidly depressing economy it will be increasingly about the costs of transition. These were under-calculated even before the Vilnius Summit. As a result, Western support may appear too little and too thin, particularly if the fighting will continue in the East and/or the central government won’t be apply to fully control and restore order in these territories.

Brussels is well aware that key Ukrainian officials left the line ministries, while civil society's expertise is rather weak. What they should also notice is that the vast majority of tens of thousands of Ukrainian bureaucrats do not understand "Eurospeak." Most of them are now underpaid and cut from the usual kickbacks. Although reforms are widely supported, the (revolutionary) fervor may erode when feeding of families (existential threat) becomes a priority. Implementing reforms will need to bring back a key amount of professionals, educate the rest and provide necessary incentives in terms of professional remuneration—otherwise resistance toward reforms will grow inside the state apparatus and among the population.

Management of expectations will also be key. In the current, emotionally charged (geopolitical) atmosphere, misunderstandings are natural, but yet may be fatal. Not because Russia is around the corner, but to fulfill Ukraine's pro-European choice and ambition, clear expectations and not (counter) propaganda should frame a credible partnership. Reality—and not another promise—is what both Ukraine and the EU now need from each other.