Q: two step verification croatia

Not yet according to the quote below from Frequently asked questions about two-step verification for Apple ID - Apple Support

Two-step verification is available in the countries below. When additional countries are added, two-step verification automatically appears in the Password and Security section of your account when you sign in to My Apple ID.

• Argentina
• Australia
• Austria
• Belgium
• Bolivia
• Brazil
• Canada
• Chile
• China
• Colombia
• Costa Rica
• Denmark
• Dominican Republic
• Ecuador
• El Salvador
• Finland
• France
• Germany
• Greece
• Guatemala
• Honduras
• Hong Kong
• India
• Indonesia
• Ireland
• Israel
• Italy
• Japan
• Korea
• Luxembourg
• Macao
• Malaysia
• Mexico
• Netherlands
• New Zealand
• Nicaragua
• Norway
• Panama
• Paraguay
• Peru
• Philippines
• Poland
• Puerto Rico
• Portugal
• Russia
• Singapore
• South Africa
• Spain
• Suriname
• Sweden
• Switzerland
• Taiwan
• Thailand
• Turkey
• United Arab Emirates
• United Kingdom
• United States
• Venezuela
• Vietnam