":Treaty of friendship and alliance between the Government of Mongolia and Tibet" . "mutual defense treaty" . . "signed a treaty of mutual recognition" . . . . "recognized" . "a treaty of mutual recognition" . . . . . "Treaty of friendship and alliance between the Government of Mongolia and Tibet" . "friendship treaty" . "treaty of friendship and alliance" . . . . . "bilateral treaty" . . "Treaty of friendship and alliance between the Government of Mongolia and Tibet" . . "treaty" .