I have Wordpress webpage with 3 languages. All articles are in different directories, but has totally same names:

• sample/article1.html
• sample/us/article1.html
• sample/uk/article1.html

I want to delete "/us" and "/uk" directories and leave only . Is it any "easy way" to write redirection rule in .htaccess, that all "/uk" and "/us" articles requests be redirected to main articles?