How to make two combo box with same selected value

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WinForms

C#5.0

.NET4.5

I work in windows form c# vs 2015

I have two combo box for country Arabic and county English

I need if user select value from combo box 1 select same value from combo box 2

my user permanent forget and select wrong country for combo box 2

my code as below :

var dataSourceAr = new List<Country>();
            dataSourceAr.Add(new Country() { Name = "اختر دوله", Value = 0 });
            dataSourceAr.Add(new Country() { Name = "الاردن", Value = 1 });
            dataSourceAr.Add(new Country() { Name = "الإمارات", Value = 2 });
            dataSourceAr.Add(new Country() { Name = "السعوديه", Value = 3 });
            dataSourceAr.Add(new Country() { Name = "البحرين", Value = 4 });
            dataSourceAr.Add(new Country() { Name = "تونس", Value = 5 });
           
            this.comboBox2.DataSource = dataSourceAr;
            this.comboBox2.DisplayMember = "Name";
            this.comboBox2.ValueMember = "Value";

 var dataSourceEn = new List<Country>();
            dataSourceEn.Add(new Country() { Name = "SelectCountry", Value = 0 });
            dataSourceEn.Add(new Country() { Name = "Jordon", Value = 1 });
            dataSourceEn.Add(new Country() { Name = "Emarate", Value = 2 });
            dataSourceEn.Add(new Country() { Name = "Saudia", Value = 3 });
            dataSourceEn.Add(new Country() { Name = "Bahreen", Value = 4 });
            dataSourceEn.Add(new Country() { Name = "Tunisi", Value = 5 });
           


            comboBox1.DataSource = dataSourceEn;
            comboBox1.DisplayMember = "Name";
            comboBox1.ValueMember = "Value";
public class Country
    {
        public string Name { get; set; }
        public int Value { get; set; }
    }

so that i need if user select value 1 from combo box 1 automatic select value 1 from combo box 2

i need to force him to get same value in two combo box

IF HE select value 3 from com box 1 select value 3 from comb box 3

How to do that if possible ?

What I have tried:

How to make two combo box with same selected value