The phrase "attempt at unification" is correct and usable in written English.
It can be used when discussing efforts or endeavors aimed at bringing together different elements, groups, or ideas into a cohesive whole.
Example: "The organization's attempt at unification of the various factions was met with mixed reactions from the community."
Alternatives: "effort to unify" or "endeavor for unification".
That 1870 declaration making Christmas an official holiday was President Ulysses S. Grant's attempt at unification.
Nevertheless, if there were an attempt at unification by the Communist govt in Pyonguang, the US would defend the South.
The umbrella organization was designed to subsume the Syrian National Council, a previous attempt at unification that has appeared increasingly marginalized as Syria has descended into civil war.
At a time when Donald Trump's views on race and seem designed to make the US more divided than ever, an attempt at unification is coming from an unlikely source: children's television.
Most of the large majority of Greek-Cypriots who voted heavily against the last big attempt at unification, the UN's Annan plan, in 2004 did so because they were about to join the European Union and felt their future bargaining position would be stronger.
Indeed, there are many such large-scale theories, each with its own distinctive and exemplary social phenomena that guide an attempt at unification.
Attempts at unification with Rome were made, without success, in 1237 and 1247.
In view of the great volume of international trade, attempts at unification of sales law have been undertaken for many years.
Previous attempts at unification all foundered on disagreements over the structure, tensions between officers inside and outside the country and the failure of donors to provide the weapons they promised.
In an interview in the Sunday Telegraph, Johnson said that Hitler and Napoleon had made failed attempts at European unification and the EU "was an attempt to do this by different methods".
