TASK DEFINITION: In this task, you are given a sentence in Spanish and your task is to translate it into English. In translation, keep the numbers and capitalization (capitalize only the first word of each sentence and name).
PROBLEM: La cohesión económica y social que propugnamos se concretiza, a través de la iniciativa Interreg, en la cohesión territorial y en la integración de los espacios fronterizos y de las periferias de nuestro continente.

SOLUTION: The economic and social cohesion which we propose is based, by means of the INTERREG initiative, on territorial cohesion and on the integration of border areas and the outermost regions of our continent.

PROBLEM: Las modificaciones más importantes tienen relación, a mi juicio, con:

SOLUTION: In my opinion, the most important amendments concern the following:

PROBLEM: No es en absoluto la cuadratura del círculo.

SOLUTION:
This is not impossible.