"conciliation by" is correct and usable in written English
You can use it to indicate the means or manner by which someone attempts to negotiate an agreement. For example, "The landlord and tenant reached an agreement after a process of conciliation by the mediation service."
And the necessary conciliation by committee could take a long time.
Conciliation, by the political emancipation of the Roman Catholics, was a necessary concomitant of union.
Elliot lodged his complaint, and a successful conciliation by the Human Rights Commission ensured access through the front door.
The speech was seen as an attempt at conciliation by a government that has faced down protests with a mixture of chilling violence and dry pledges to study policy proposals.
If Mrs. Aung San Suu Kyi's new freedom to travel and meet supporters in the last year was an experiment in conciliation by the ruling generals of the former Burma, it was a disaster for them.
Australia has been forced to appear before a UN conciliation commission at the permanent court of arbitration in The Hague – the first time any country has been brought for "compulsory conciliation" – by Timor-Leste after its consistent refusal to negotiate a permanent maritime boundary, and revelations Australian agents spied on Timor-Leste's government during earlier treaty talks.
Their first aim is to take the heat out of a situation by tact & conciliation; never by authoritarian methods.
The difference then was that ultraconservatives who opposed Conciliation (led by Eusébio, Uruguai and Itaboraí) perceived the Emperor as being indispensable to the functioning of the political system: an ultimate and impartial arbiter when deadlock threatened.
The Trump national-security official I spoke to said that the more aggressive approach would lead to greater global stability, because America's enemies are more likely to be deterred by a credible threat of force than by conciliation.
Both sides appear to acknowledge that the conciliation process overseen by Acas is exhausted for now.
As part of the reform to the system, employees and employees must take part in a free "early conciliation" process, overseen by the independent conciliation service Acas to see if legal proceedings can be averted.
