try this code for your search

my $xml_str = '<List>
   <Events WID="1">
           <Event Confirmed="Y">
                <Country>USA</Country>
                </Event>
                <Event Confirmed="Y">
    <Country>UK</Country>
    </Event>
    <Event Confirmed="Y">
             <Country>CANADA</Country>
             </Event>
             </Events>
             <Events WID="2">
                     <Event Confirmed="Y">
    <Country>MEXICO</Country>
    </Event>
    <Event Confirmed="Y">
             <Country>INDIA</Country>
             </Event>
             <Event Confirmed="Y">
                      <Country>CHINA</Country>
                      </Event>
                      </Events>
                      </List>';


parse_xml($xml_str);

sub parse_xml
{
    use XML::LibXML;
    no warnings;
    my $Country = ();
    my @List = ();

    my $parser = XML::LibXML->new();
    my $doc    = $parser->parse_string($_[0]);

    foreach my $ca_isins ($doc->findnodes('/List/Events'))
    {
        my ($id) = $ca_isins->findnodes('@WID');        
        $widValue=$id->to_literal;
        my (@titleCountry) = $ca_isins->findnodes('./Event//Country');
+        
         foreach (@titleCountry){
            push (@List, ($_->to_literal, '|', $widValue, "\n"));
        }
    }

    print "@List";
}
[download]

Thanks so much. That worked perfectly.

One more question?

why is it ./Event//Country and not ./Event/Country, with single /?

A single slash would be sufficient. For that matter, the leading "./" is completely useless.

my @titleCountry = $ca_isins->findnodes('Event/Country');
[download]

I am not mr_p