Liechtenstein has 33% u152 and Belgium has about 10% I believe.
Contrary to popular belief, it appears that the clade was founded somewhere near the Bashkirs. According to Myres et al. 2010, the highest frequency of 74% of 70 samples of Bashkirs from norhtern Bashkorostan belonged to U152. I don't know if this is a typo of the team as the one with Croats and M458 in Underhill et al. 2014. In all other southern and eastern Bashkirs U152 is mentioned with a maximum frequency of 1%.
The Y-DNA haplogroups among its Bashkir members include R1b-M73, R1b-M269, R1b-Z2105, R1b-U152, R1a-Z2123, R1a-Z282, R1a-Z280, N1, G, I1-Z59, I2, H, and C. (...) Regarding Y-DNA haplogroups genetic studies have revealed that most Bashkir males belong to haplogroup R1b (R-M269 and R-M73) which is, on average, found at the frequency of 47,6%. Following are the haplogroup R1a at the average frequency of 26,5%, and haplogroup N1c at 17%. In lower frequencies were also found haplogroups J2, C, O, E1b, G2a, L, N1b, I, T.[7] The main branch of R1a in Bashkirs is Z93, specifically Z2125, which peaks in Central Asia, among Bashkirs at 31%.
Most mtDNA haplogroups found in Bashkirs (60-65%) consist of the haplogroups G, D, С, Z and F; which are lineages characteristic of East Eurasian populations. On the other hand, mtDNA haplogroups characteristic of European and Middle Eastern populations were also found in significant amounts (35-40%).
The Bashkirs physically and genetically have a mixture of European and Asiatic traits, which is fitting because they live on both sides of the Ural Mountains geographically separating Europe and Asia. Fedorova's team found them to be 60.7% Caucasian and 39.3% Mongoloid. That makes them more Mongoloid than the Volga Tatars and Chuvashes but less Mongoloid than some Central Asian Turkic-speaking peoples like the Uyghurs and Kazakhs.
the peak in south western iberia matches somehow with the celtici. can't post the link but just search for celtici in google. the wikipedia site has a nice map.
but it's strange that the haplogroup is not as common in other former celtic region in iberia.
wikipedia says that the celtici were a mix of celtiberians and celts form central and northeastern gaul. maybe they could have had a higher percentage of U152 than the other celtiberians because of this.
Edit: probably not. the percentage should still not be higher than in gaul.