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: Pero esta necesaria política realista y pragmática, que debería centrarse en la supresión de los obstáculos concretos identificados como factores indiscutibles de esta desigualdad, para nosotros debe fundarse en el concepto de complementariedad, el único que puede justificar una política voluntarista en la materia.

SOLUTION: This necessary realistic and pragmatic policy, however, which will have to be associated with the elimination of the practical obstacles identified as unquestionable factors in this inequality must, as far as we are concerned, necessarily be based on the idea of complementarity, which is the only one capable of justifying a proactive policy on the subject.

PROBLEM: (SV) Obviamente mi idea es que el mainstreaming debe estar presente en todo lo que hacemos.

SOLUTION: (SV) My understanding of mainstreaming is, of course, that this should characterise everything we do.

PROBLEM: En este sentido, LEADER ha resultado ser una iniciativa muy eficaz para el desarrollo, porque ofrece a las comunidades locales la posibilidad de determinar su potencial de desarrollo y de participar activamente en la solución de los problemas.

SOLUTION:
In this regard LEADER has established itself as an effective development initiative. It provides the opportunity for local communities to identify their development potential and become actively involved in addressing those problems.