I don’t understand Euro politics either other than there’s no direct correlation between conservatives here and over there.
It’s like watching a telenovela
“Euro politics” is a mixture of two levels or more of politics
1. the most important - at the individual country-levels -> like France, Poland, etc.
2. secondary importance - the individual “nation” or administrative levels —> for instance in Germany it is a Federal structure, with the Landen (states) having the ability to conclude treaties with foreign countries in matters within their own sphere of competence and with the consent of the Federal Government (Article 32 of the Basic Law). Typical treaties relate to cultural relationships and economic affairs.
3. tertiary importance the European parliament
Why is the EU parliament of tertiary importance? Because the way the EU is set up - it’s not a country, but a confederation (a looser federation) where the real power is with the executive - the leaders of the 28 countries that are part of the federation (the Executive).
For an idea of how “Europe” will react to something - well, you can’t get that idea, except for trade purposes.
For trade purposes you can look at Donald Tusks’ statements.
For stuff like say a US war with Iran, you need to see what individual countries think.
In terms of politics - well it varies throughout the 28 countries